Journal of
Entomology and Nematology

  • Abbreviation: J. Entomol. Nematol.
  • Language: English
  • ISSN: 2006-9855
  • DOI: 10.5897/JEN
  • Start Year: 2009

JEN Articles

April 2018

Moderate grazing impacts on insect-flower interactions in grasslands in a biodiversity hotspot

Transformation of natural landscapes is the leading cause of global biodiversity decline. This is often exacerbated through anthropogenic activities that result in the alteration of natural ecosystem. Displacement of local species is characteristics of this process and this is of negative consequence especially for species in mutualism. In this study, how grazing and mowing activities influence flower-insect...

Author(s): Opeyemi A. Adedoja, Eluyeba Mayowa, Oyeseyi Oyelade and Temitope Kehinde

March 2018

Integration of botanicals and inert dusts with resistant varieties against Sitophilus zeamais (Motsch.) of stored maize (Zea mays) in Ethiopia

Dosage rates of 0.625, 1.25 and 2.5% of the leaves powder of Calpurnia aurea and Milletia ferruginea, and red and white inert dusts that were admixed with the 100 g of three resistance maize varieties were tested as protectant against maize weevils under laboratory condition. Significantly (p < 0.05) higher parental adult weevil’s mortality were recorded in all treatments of integration than untreated check at...

Author(s): Berhanu Hiruy and Emana Getu  

January 2018

Leguminous crops as an alternative rotation with tobacco to control Meloidogyne javanica

Root-knot nematodes cause substantial economic yield loss in tobacco production and many other crops in the world. Their control has been achieved for decades by use of chemical nematicides. However, concern for the environment has led to the banning and phasing out of some effective chemical nematicides. The use of crop rotation is one of the environmentally friendly and sustainable management strategies for managing...

Author(s): Privilege Tungamirai Makunde, Susan Dimbi and Tafadzwa Stephen Mahere  

December 2017

New records of Aphelinidae (Hymenoptera: Chalcidoidea) from Morocco and comparison with North Africa region fauna

A survery of Aphelinidae (Hymenoptera: Chalcidoidea) species associated with crop and forest pests in Morocco was conducted during 2012-2014, using Malaise trap and completed by a bibliographical research. Based on examination of all the available data and captured specimens, 34 confirmed species in total included 20 genera divided into four subfamilies of Aphelinidae as listed in Morocco. Two new Aphelinidae species...

Author(s): Khadija Kissayi, Souâd Benhalima and Moulay Chrif Smaili

November 2017

Reaction of sweet potato genotypes to sweet potato weevils (Cylas puncticollis (boheman) and Alcidodes dentipes (olivier), coleoptera: curculionidae) and viruses in Eastern Hararge, Oromiya, Ethiopia

Nineteen sweet potato genotypes were screened for tolerance against sweet potato weevils and viruses at different locations of Eastern Hararge. Disease incidence and weevil population was assessed using standard procedures. Results of this study revealed that sweet potato weevils (SPW) and sweet potato virus diseases (SPVD) were present in studied area varied among sweet potato genotypes. Genotypes; Awassa-83, Bekale-A,...

Author(s): Tarekegn Fite, Emana Getu, Hirpa Legesse and Waktole Sori

September 2017

Description of the molecular profiles of Bemisia tabaci (Hemiptera: Aleyrodidae) in different crops and locations in Brazil

The Whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) causes damages to crops by feeding and/or transmitting various plant pathogenic viruses. Morphologically indistinguishable populations of B. tabaci can exhibit variable molecular features and biological behavior. The objective of this work was to present the molecular profile and genetic variability of B. tabaci collected from several crops and localities...

Author(s): Paulo Roberto Queiroz, Luzia Helena Lima, Érica Soares Martins, Edison Ryoiti Sujii and Rose Gomes Monnerat

July 2017

Growth and reproductive performance of Eisenia fetida in three varieties of flower (rose, carnation and hypericum) leftovers

Understanding the growth and reproductive efficiency of vermicomposting worms in various substrates is highly essential for effective utilization of earthworms in sustainable waste management system. The growth and reproductive performance of Eisenia fetida in rose, hypericum and carnation flower wastes was evaluated in this microcosm study. Determination of cocoon production rate, hatching success, number of hatchling,...

Author(s): Gezahegn Degefe and Girum Tamire

June 2017

Pathophysiological effects of Neem (Azadirachta indica) derivatives to Rhipicephalus appendiculatus, the tick vector for Theileriosis (East Coast Fever)

The effects of 2 Neem derivatives, Neem oil (NO) and Neem Seed Powder (NSP), on various physiological parameters of the brown ear tick, Rhipicephalus appendiculatus, the vector for Theileria parva. Neem oil was applied on rabbit ears using a fine brush, whereas NSP was mixed with rabbit pellets at various concentrations and fed on goats on which various instars of the tick were allowed to feed. Tick larvae smeared with...

Author(s): Godwin P. Kaaya and Marius Hedimbi  

June 2017

Acaricidal activity of Chrozophora oblongifolia on the two spotted spider mite, Tetranychus urticae Koch

The acaricidal activity of Chrozophora oblongifolia (Delile) Spreng. (Euphorbiaceae) extracts collected from Dakhla Oasis, Western Desert of Egypt was examined against larvae and adult females of Tetranychus urticae Koch (Acari: Tetranychidae). Acaricidal activity-guided isolation of methylene chloride, ethyl acetate, butanol fractions resulted in separation and identification of p-hydroxybenzaldehyde (1),...

Author(s): Mohamed Elhosieny Mostafa, Maha Mohamed Alshamy, Ahmed Abdelmonem and Mamdouh Abdel-Mogib

May 2017

Effects of crude extracts of medicinal plants in the management of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under laboratory and glasshouse conditions in Ethiopia

Tomato leaf miner, Tuta absoluta (Meyrick) is a devastating pest of tomato originating from South America which has been recorded in Ethiopia throughout tomato growing areas since 2012. The larvae damages the above ground parts of the plant especially leaf and fruits from seedling stage to maturity. Studies were conducted between 2015 and 2016 for two seasons to screen medicinal plants for the management of T. absoluta...

Author(s): Tadele Shiberu and Emana Getu

April 2017

The electron microscopic examination of fungal distortions in the adult red flour beetle, Tribolium castaneum H. (Coleoptera: Tenebrionidae)

The red flour beetle (Tribolium castaneum) is one of the main pests infecting cereals and causes damage to stored grains. Many pests, including beetles, are susceptible to infection by naturally occurring insect-pathogenic fungi (entomopathogenic fungi). In the present study, wheat flour collected from the local markets in the Jazan region of Saudi Arabia and dead bodies of T. castaneum adults were separated. The fungi...

Author(s): Bosly A. Hanan

November 2016

Molecular characterization and evaluation of indigenous entomopathogenic fungal isolates against Sorghum Chafer, Pachnoda interrupta (Olivier) in Ethiopia

Sorghum chafer, Pachnoda interrupta (Olivier) is a damaging pest of sorghum, other cereals and horticultural crops in Africa which results in complete crop loss. Currently, the management strategies rely heavily on chemical pesticides, which do not provide effective control. There is evidence showing that microbial biocontrol agents have the potential to control P. interrupta.  In this study, the entomopathogenic...

Author(s): Belay Habtegebriel, Emana Getu, Mohamed Dawd, Emiru Seyoum, Getnet Atnafu, Fathiya Khamis, Ylva Hilbur, Sunday Ekesi and Mattias C. Larsson

October 2016

Mapping the occurrence and density of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Mato Grosso do Sul State, Brazil

The species Helicoverpa armigera is one of the most important polyphagous and widely distributed pests in the world. Its occurrence was recently reported on soybean and cotton, in the states of Goiás, Mato Grosso and Bahia, Brazil. This study aimed to evaluate the occurrence and density of Helicoverpa armigera in Mato Grosso do Sul State, an important pest for agriculture and identified in Brazil in 2013. 81...

Author(s): José Fernando Jurca Grigolli, Crébio José Ávila, Harley Nonato de Oliveira, Germison Vital Tomquelski and Viviane Santos

June 2016

Myrmecofauna of cocoa trees infested by Loranthaceae genus Phragmanthera in Sodecao seed fields of Nkoemvone (South of Cameroon)

The present study was carried out in order to identify the ant fauna of cocoa fields leeched by Loranthaceae, genus Phragmanthera in Nkoemvone seed farms in the South region of Cameroon. The collection of ants was conducted between November 2013 and January 2014. A total of 15 ant species divided into two sub families (Formicinae and Myrmicinae) have been identified, the subfamily of Myrmicinae being the most...

Author(s): Ondoua Joseph Marie, Mony Ruth, Dibong Siegfried Didier, Ngotta Biyon Jacques Bruno, Taffouo Victor Désiré, Kenne Martin and Ekodeck Georges Emmanuel

March 2016

Evaluation of some botanicals and Trichoderma harzianum against root-knot nematode (Meloidogyne incognita (Kofoid and White) Chit wood) in tomato

Root-knot nematode, Meloidogyne incognita (Kofoid and White) Chit wood) is one of the major constraints for the successful cultivation of tomato (Lycopersicon esculentum Mill.) in Ethiopia. Among different management strategies, biological control is important in the light of increased awareness of environmental and human health hazards. Therefore, the present study was conducted to evaluate the effect of different...

Author(s): Belay Feyisa, Alemu Lencho, Thangavel Selvaraj and Gezehegne Getaneh

February 2016

Effect of two species of arbuscular mycorrhizal fungi inoculation on development of micro-propagated yam plantlets and suppression of Scutellonema bradys (Tylenchideae)

Using two commercially available arbuscular mycorrhizal fungal (AMF) products, one based on Funneliformis mosseae and the other on Glomus dussii, an experiment was conducted to assess their effect on yam growth and ability to suppress nematode damage in pots. Four yam cultivars (cvs) were used: two Dioscorea alata cvs (TDa98-01183 and TDa98-165), and two Dioscorea rotundata cvs (TDr97-00551 and TDr 745). Micropropagated...

Author(s): Atti Tchabi, Fabien C. C. Hountondji, Bisola Ogunsola, Louis Lawouin, Danny Coyne, Andres Wiemken and Fritz Oehl

December 2015

Effect of Cymbopogon citrates (Poaceae) oil and citral on post-embryonic time of blowflies

Cymbopogon citratus oil is used in folk medicine asrepellent and insecticide against insects. This study evaluated the insecticidal activity of C. citrates oil extracted from Brazil and Cuba and its main component citral as insecticides against Chrysomya megacephala, Chrysomya putoria and Lucilia cuprina. Variables monitored were:duration of post embryonic development, larval weight (mg), sex ratio, mortality index...

Author(s): Zeneida Teixeira Pinto, Félix Fernández-Sánchez, Arith Ramos Santos, Ana Claudia Fernandes Amaral, JoséLuiz Pinto Ferreira, Julio Cesar Escalona-Arranz and Margareth Mariade Carvalho Queiroz

June 2015

Haemocytes and protein changes in Schistocerca gregaria after infection with nucleopolyhedrovirus

Innate immune response in insects is essential to resist the infections of pathogens. The present study investigates the antiviral immune response against intracellular baculovirus infection in the desert locust, Schistocerca gregaria. The desert locust was injected with nuclear polyhedral virus isolated from Spodoptera littoralis larvae collected from cotton and maize field in Giza governorates (SlNPV). Haemolymph was...

Author(s): Mahmoud, D. M. and Soliman, D. E.

June 2015

Bioactivity of fractionated indigenous medicinal plant extracts of Phlomis damascena Born. and Ranunculus myosuroides against the cotton whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)

Two bioactive methanol (MeOH) extracts of two indigenous medicinal plant species Phlomis damascena Born. and Ranunculus myosuroides Boiss. & Kotschy were tested for insecticidal activity of their fractions against the cotton whitefly Bemisia tabaci (Gennadius) adults under controlled conditions. This study is within bio-prospection context, in form of utilizing local plant species as an alternative in sustainable...

Author(s): E. Abou-Fakhr Hammad, A. Zeaiter, N. Saliba,  M. Farran and S. Talhouk

May 2015

Evaluation of calcium sulphate, potassium silicate and moringa dry leaf powder on Meloidogyne incognita infecting tomato plant with reference to N, P, K, total phenol and cholorophyl status under greenhouse condition

A pot randomized complete block design experiment was carried-out to evaluate the impact of calcium sulphate or potassium silicate or moringa dry-leaf powder either alone or combined as double or triple treatments along with oxamyl or the three items + oxamyl 24% L as tetra application in comparison with oxamyl at the recommended dose against Meloidogyne incognita infecting tomato plant cv. 9065 FI under greenhouse...

Author(s): El-Sherif, A. G., Gad, S. B. and Saadoon, S. M.

April 2015

Sources and abundance of fungi with entomopathogenic potential for control of the cowpea pod borer, Maruca vitrata Fab. in Ibadan, Nigeria

The potential sources and abundance of naturally occurring entomopathogenic fungi with bio-control potential against the cowpea pod borer, Maruca vitrata, were investigated by adapting the Galleria bait method. Soil samples from five sites: Cow-stead, Piggery and Poultry sites as well as Crops Research Garden (CRG) and Practical Year Training Programme (PYTP) farm for arable crops of the University of Ibadan were used...

Author(s): Omoloye, Adebayo Amos, Ajifolokun, Adesola Oluwabunmi, and Tobih, Francis Okeremute    

April 2015

Adult emergence percentage from irradiated fruit flies, Bactrocera zonata and Bactrocera cucurbitae pupae

Fruit flies are regarded as one of the most devastating pest of fruits and vegetables on earth planet. Generally chemical control is implemented for their control but it poses lot of eco-environmental concerns so the emphasis is now turning towards eco-friendly management practices.  Bio-control is an efficient and environmentally sound approach and augmentation is primarily focus on classical biological control...

Author(s): MUHAMMAD NAVEED, MUHAMMAD JALAL ARIF and NAZIR AHMAD    

March 2015

Insect larvae associated with dropped pomegranate fruits in an organic orchard in Tunisia

In an attempt to find out the reasons of pomegranante fruit drop due to insect attacks, regular collection of all fallen fruits beneath trees of nine different varieties was done during the fruiting season from August 2013 to December 2013 in an organic pomegranate orchard in the Chott-Mariem region of Tunisia. Apparently heatlthy and cracked fruits were dissected in the laboratory to identify insect larvae found...

Author(s): Mohamed Braham

March 2015

Isolation and identification of fungal growth on Tribolium castaneum in stored wheat flour

Stored wheat flour samples purchased from Jazan local markets in Saudi Arabia were checked for the presence of pests, insect and fungal species. The insects existing in the flour were separated and identified as red flour beetle Tribolium castaneum and from 60 individuals (dead bodies) inspected, 17 individuals exhibited abnormal deformation, decomposition and or superficial fungal growths. Incubation of the dead...

Author(s): Bosly, H. A. and El-Banna O. M.

January 2015

Population dynamics and damages of onion thrips (Thripstabaci) (Thysanoptera: Thripidae) on onion in Northeastern Ethiopia

This study was conducted in kewet district of Amhara region, Ethiopia. The experiment on seasonal thrips population dynamics and onion yield loss was conducted in 2003 and 2004. The treatments were five transplanting dates of two month interval with and without spray of insecticide in five replications. Thrips count per plant was low during the rainy and cool months of July to November and in April. Thrips population...

Author(s): Yeshitla Merene

December 2014

Evaluation of the efficiency of Gaeolaelaps aculeifer in control of plant parasitic nematode Tylenchulus semipenetrans under greenhouse conditions

Biological control of plant parasitic nematode Tylenchulus semipenetrans was studied under greenhouse conditions. In the present study, the effect of the soil-dwelling predatory mite, Gaeolaelaps aculeifer (Acari: Laelapidae), on the population development of citrus nematode was examined. Compared to the nematode-alone, all mite treatments significantly restricted reproduction of citrus nematode. Nematode population...

Author(s): Aazam Salehi, Hadi Ostovan and Mohamad Modarresi

December 2014

Effect of infection by Metarhizium anisopliae isolate ICIPE 51 on developmental stage, fecundity and intrinsic rate of increase of Rhopalosiphum padi and Metopolophium dirhodum

This study assesses the pathogenicity of Metarhizium anisopliae isolate ICIPE 51 against different nymphal instars and adults of Rhopalosiphum padi and Metopolophium dirhodum and investigates effects of fungal infection on fecundity and intrinsic rate of aphid increase. To obtain different developmental stages, adult aphids were inoculated onto fresh leaf discs, reproducing parthenogenetically. Rearing was carried out...

Author(s): Patrick Murerwa, Peter Futi Arama, Alice Wanjiku Kamau and Nguya Kalemba Maniania

December 2014

Evaluation of cultivars and insecticides on insect pests and grain loss of rainfed cowpea (Vigna unguiculata (L.) Walp.) at Baga, Lake Chad shore area of Nigeria

Field trials were conducted to determine effects of cultivar and insecticide application on grain yield and yield loss of cowpea to insect pest during the 2008 and 2009 cropping seasons at Baga (13° 29ʺ N and 13° 32ʺ E), Lake Chad shore area of Nigeria. Three cowpea varieties (Kanannado, Borno brown and IT98k-1312), two insecticides [cypermethrin (30 g) + dimethoate (250 g) and neem seed aqueous extract] and...

Author(s): U. M. Maina, B. M. Sastawa and B. M. Biu

November 2014

Response of chips from different varieties of yam to larger grain borer (LGB) (Prostephanus truncatus (Horn) (Coleoptera: bostrichidae) infestation

Laboratory studies were conducted at the University of Port Harcourt to evaluate the response of dried yam chips as a host for Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae). The test was conducted using four improved yam varieties namely; Adaka, Ame, Nwokpoko and Obiaturugo. Ten grams of each substrate of the dried yam chips were placed in plastic containers of 300 ml and each container was infested with...

Author(s): Sylvester R. Atijegbe, Ndowa E. S. Lale, Usman Zakka, Deborah E. Atuakpoho and Collins Ehisanya

November 2014

Effect of plant bed type on nematode density and yield of cabbage in two regions of Ghana

Cole crop production in general and cabbage in particular is constrained by pest infestation, reducing the farmer’s profit margin considerably. In this study, the effects of three plant bed types: flat, ridges and raised beds were investigated in 2012 and 2013 at Asiwa and Dormaa Ahenkro in Ghana, respectively to study their effects on plant parasitic nematodes and the yield of cabbage. Treatment effects on...

Author(s): Osei, K., Osei, M. K. and Mochiah, M. B.

October 2014

Molecular profiling of different morphotypes under the genus Rhynchophorus (Coleoptera: Curculionidae) in Central and Southern Philippines

Rhynchophorus ferrugineus Olivier and Rhynchophorus schach Olivier have long been reported as the two most common species of palm weevils in the Philippines. In 2008, surveys conducted in Agusan del Sur, Davao del Sur, Davao City and Cebu revealed more erstwhile unreported palm weevil morphotypes which led to perplexity in taxonomic classification. This study was conducted to determine and ascertain the genetic...

Author(s): Reynaldo G. Abad, Joie Sheen A. Bastian, Rose L. Catiempo, Marian L. Salamanes, Phoebe Nemenzo-Calica and Windell L. Rivera,

October 2014

Management of tef shoot fly, Atherigona hyalinipennis (Reg.) (Diptera: Muscidae) on tef at Ambo, West Showa of Ethiopia

Tef [Eragrostis tef (Zucc.) Trotter: Poaceae] is one of the major cereal crop and stable food crop of Ethiopia where it originated and diversified. Tef shoot fly (Atherigona hyalinipennis) is a serious pest of tef grown on black clay soils. Therefore, the present study was taken to assess the status of tef shoot fly on both row planted and broadcasted tef at small-scale farm. The experiment was laid out in randomized...

Author(s): Abebe Mideksa, Mulugeta Negeri and Tadele Shiberu

September 2014

Two new invasive species recorded in Kastamonu (Turkey): Oak lace bug [Corythucha arcuata (Say, 1832)] and sycamore lace bug [Corythucha ciliata (Say, 1832)] (Heteroptera: Tingidae)

The oak lace bug, Corythucha arcuata (Say) is an important invasive species that causes severe damage to oak species. It was first identified in Europe in 2000. It was recorded for the first time in Turkey in 2003 in Bolu. The sycamore lace bug Corythucha ciliata (Say) is an invasive species that causes severe damage to sycamore trees. The first time it was reported in Europe was in 1964 in Italy. It...

Author(s): Ibrahim KÜÇÜKBASMACI

September 2014

Soil nematode communities associated with hazelnut orchards in Turkey

The study was conducted to investigate the status of soil nematode communities in hazelnut orchards in Ordu province, Turkey. Nematodes were identified to genus level and allocated to trophic groups. A total of 50 taxa were found from hazelnut growing areas including 19 plant parasites, 12 bacterivorous, 4 fungivorous, 4 predators and 11 omnivorous. Genera Tylenchus (94.5%), Gracilacus (79.1%)...

Author(s): Faruk Akyazi, Senol Yildiz and Anil Firat Felek

August 2014

Toxicological and residual effect of Deltamethrin and Chlorpyrifos against the German cockroach, Blattella germanica (Linnaeus) (Insecta: Blattodea: Blattellidae)

The toxicological and residual properties of two insecticidal agents, Deltamethrin and Chlorpyrifos were evaluated against the German cockroach, Blatella germanica in laboratory bioassay. The insecticides were diluted in both aqueous and oil-based solvents and tested against the roaches in pre-determined concentrations and untreated control. Experimental cages were either completely sealed after exposure or perforated...

Author(s): Kemabonta, K. A., Ohadiwe, A. and Adetoro, F. A.

August 2014

Susceptibility test of female anopheles mosquitoes to ten insecticides for indoor residual spraying (IRS) baseline data collection in Northeastern Nigeria

Malaria is a major public health problem in Nigeria, accounting for about 60% of all outpatient attendances and 30% of all hospital admissions. Indoor residual spraying (IRS) was scaled up in Nigeria to supplement long lasting insecticide treated nets (LLINs) for malaria vector control. The success of IRS partly defends on the susceptibility of local anopheles mosquitoes to insecticides. The WHO standard...

Author(s): Umar A., Kabir B. G. J., Amajoh C. N., Inyama P. U., Ordu D. A., Barde A. A., Misau A. A., Sambo M. L., Babuga U., Kobi M. and Jabbdo M. A.

July 2014

Biodiversity of plant-parasitic nematodes of sugarcane in Bacita, Nigeria

Plant-parasitic nematodes of sugarcane have been variously reported to be associated with decline in sugarcane production. A field survey of the sugarcane plantation at Bacita, Nigeria was conducted to identify the diverse nematode species associated with the soils and roots of sugarcane and to determine their population densities on the field. Twelve species of plant-parasitic nematodes were found in association with...

Author(s): Afolami Steven, Solomon Sunday and Daramola Fisayo

July 2014

Biology of the mealy bug, Rhizoecus amorphophalli infesting tubers of major aroids

The present study was carried out to trace the life cycle of mealy bug, Rhizoecus amorphophalli on three different hosts including elephant foot yam, taro and tannia tubers. Investigation revealed that the mealy bug reproduces sexually and the adult female secretes an egg sac of white waxy substance in which eggs were laid. Female nymph moult normally, but male instar produces a cottony puparium around its body and form...

Author(s): Sreerag, R. S, Jayaprakas, C. A and Nishanth Kumar S

June 2014

Effects of different agricultural wastes and botanical on root knot nematode (Meloidogyne spp) on okra (Abelmoschus esculentus L. Moench)

The effect of agricultural wastes and a botanical on root knot nematode (Meloidogyne spp) on okra (Abelmoschus esculentus L. Moench) was investigated in pot experiment. The experiment was laid out in a completely randomized design with five treatments each replicated five times. The treatments included: sawdust, oil palm sludge, cassava peels, bitter leaf powder, carbofuran plus untreated control. All the treatments...

Author(s): ONONUJU, C. C., IKWUNAGU, E. A., OKOROCHA, A. D. AND OKORIE, C. C.

June 2014

Comparative biological parameters of whitefly, Bemisia tabaci (Genn.) on fruit bearing vegetable crop plants

Ecology of whitefly Bemisia tabaci Genn., has been studied extensively in the recent past and a varying response was observed on different host plants. The degree of this variation is because of type of host plant combination. The present investigation was conducted to find out the comparative age specific survival, mortality and life table parameters in presence of four major fruit bearing vegetables that is brinjal...

Author(s): Syed Kamran Ahmad and Parvez Qamar Rizvi

May 2014

Incidence of root-knot nematode (Meloidogyne incognita) in black pepper in Karnataka

Black pepper (Piper nigrum L.) known as “King of Spices” is one of the important spice crops of India. It is affected by fungi, bacteria, phytoplasma, plant parasitic nematodes and phanerogamic parasites. Among plant parasitic nematodes, root-knot nematode Meloidogyne incognita is one of the important limiting factors in production and productivity of black pepper in various districts of Karnataka. Further,...

Author(s): H. Ravindra, Mukesh Sehgal, T. G. Manu, R.  Murali M. Latha and H. B. Narasimhamurthy

March 2014

Mosquito vector survey in Guwahati city of Assam, India

Mosquitoes of the family Culicidae are distributed worldwide and comprise about 3500 species. The diversity of the mosquito species varies among different geographical regions of the world. Assam is situated in the subtropical region with fluctuation in temperature in different seasons and heavy rainfall occurs in a particular period. So, mosquito vector surveys were conducted in different seasons to identify the...

Author(s): J. C. Kalita, Alak Ch. Deka and Kaushik Misra

February 2014

Aleytrap: An instrumentation to handle adult whitefly, Bemisia tabaci, Gennadius

Whiteflies are fast flying, minute insects in the suborder Homoptera of the Hemiptera; family Aleyrodidae. They are reported to transmit viral diseases in various, economically important agricultural crops. Based on their small size (average wing spans of about 3 mm), whiteflies are difficult to count on plants or capture through insect nets and other tools. Therefore, we developed a feasible and effective method to...

Author(s): Syed Kamran Ahmad, Parvez Qamar Rizvi and Shabistana Nisar

February 2014

Effect of different concentrations of Eriobotrya japonica extract on control of infection by Meloidogyne incognita and Cephalobus litoralis

This study discusses and developed methods for obtaining plant extracts/pure compounds and its usages as a nematicidal agent. Freshly hatched second-stage juveniles of two nematode species, Meloidogyne incognita and Cephalobus litoralis were used. A bioassay guided isolation of the extract, fractions and pure compounds were done for their nematicidal activity at different concentrations in comparison with Azadirachta...

Author(s): Nighat Sultana, Musarrat Akhtar, Sadia Ferheen, RanaKausar, Zakia khatoon, Razia Sultana, and Ghafoor Ahmed

February 2014

Description of a new species of insect parasitic nematode, Leidynema (Schwenck, in Travassos 1929) (Thelastomatidae) from host Periplaneta americana of Meerut region - India

Three different types of insect parasitic nematodes namely - Leidynema, Thelastoma and Hammerschmidtiella, were collected from hind gut of host Periplaneta americana. The new species - Leidynema meerutensis sp. nov., is characterized with its females having a typical corpus broader at posterior and an enlarged blind intestinal diverticulum, females with unequally disposed lateral alae with posteriorly directed terminal...

Author(s): Praveen Kumar Singh, Pragati Rastogi and Hridaya Shankar Singh

January 2014

Distribution and impact of Busseola fusca (Fuller) (Lepidoptera: Noctuidae) and Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) in Northeastern Ethiopia

An assessment was done during the long and short rainy cropping seasons of 2010/2011 across different agro-climatic zones (ACZs) with the objective of determining the distribution, species composition and damage levels of important stem borer species in North-eastern Ethiopia. Data were collected from 21 localities of six districts, four fields in each locality, and a total of 84 fields were assessed. Busseola fusca...

Author(s): Asmare Dejen, Emana Getu, Ferdu Azerefegne and Amare Ayalew

January 2014

Seasonal variation of Ace-1R mutation in Anopheles gambiae s. l. populations from Atacora region in Benin, West Africa

The spread of Ace-1R mutation that confers carbamate and organophosphate resistance in Anopheles gambiae s.l. is a critical issue for malaria vector control. The aim of this study was to investigate the seasonal variation of the Ace-1R mutation in A. gambiae s. l populations. The mosquitoes analyzed were collected by human landing catches (HLC) in five districts in the department of Atacora from May 2011 to June 2013....

Author(s): Rock Aïkpon, Nazaire Aïzoun, Razaki Ossè, Frédéric Oké-Agbo, Olivier Oussou, Renaud Govoétchan, Arthur Sovi, and Martin Akogbéto,

December 2013

Evaluation of predation potential of coccinellids on cassava whiteflies

Two whitefly species namely Bemisia tabaci and Aleurodicus dispersus are common cassava pests in Kenya. As direct feeders on the phloem contents and vectors of viruses, whiteflies cause significant damage to the cassava crop in Kenya. This study aimed at evaluating the potential of coccinellidae beetles (Chelomenes vicina, Diomers flavipes, Diomers Hottentota, and Coccinella septempunctata) as predators of whiteflies....

Author(s): H. Atuncha,  E. Ateka R. Amata, R. Mwirichia, M. Kasina, B. Mbevi and E. Wakoli

December 2013

Investigation of fleas as vectors in the transmission of plague during a quiescent period in North-Eastern, Tanzania

Yersinia pestis, the etiologic agent of plague, is normally transmitted to animals by infective flea-bites. Fleas associated with rodents, cats, dogs and other small mammals are considered important for the maintenance and transmission of the bacterium. Therefore, a study was undertaken to investigate the presence of Y. pestis in fleas of North-Eastern Tanzania during a quiescent period. House rodents were trapped with...

Author(s): Martin Haule, Eligius E. Lyamuya, Bernard M. Hang’ombe, Bukheti S. Kilonzo and Mecky I. Matee

October 2013

Laboratory assessment of insecticidal properties of Tagetes minuta crude extracts against Brevicoryne brassicae on cabbage

The cabbage aphid, Brevicoryne brassicae is one of the most serious insect pests of cabbage in Lesotho. Chemical insecticides for efficient control of this pest are often unaffordable for resource-poor farmers. As a first step in a search for effective pest management techniques that can be affordable and easily available to these farmers, the aphicidal activities of Tagetes minuta crude extracts were evaluated against...

Author(s): Phoofolo, M. W., Mabaleha, S. and Mekbib, S. B.

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