The polyphagous tomato fruit borer Helicoverpa armigera (Hubner) causes yield loss of 40 – 60 per cent under favourable conditions in Tomato. farmers rely upon chemical insecticides for its management and injudicious use leads to unwarranted problems. bio pesticides as a component integrated pest is one the important factor overcome related issue. Among bio-pesticides entomopathogenic fungi pro...

Interactions between the entomopathogenic fungus, Beauveria bassiana SG8702, and imidacloprid on Nilaparvata lugens (Homoptera: Delphacidae) were studied in laboratory bioassays by spraying suspensions of unformulated conidia (assay 1) and aqueous dilutions of emulsifiable conidia formulation alone (assay 2) or together with imidacloprid at the sub-lethal rates of 0.5, 1.0 and 2.0 microg ml(-1)...

in this study, the effects four beauveria bassiana isolates, obtained from soil of fashand, atashgah & ghare-agaj and one from a grass hopper sphingonotus.sp on adults of adult russian wheat aphid diuraphis noxia was studied under laboratory conditions. after determination of the minimum & maximum concentrations, the adults russian wheat aphid were treated with conidial concentrations of 1×103 ...

The entomopathogenic fungal genus Lecanicillium Gams and Zare (formerly classified as the species Verticillium lecanii) includes that are highly pathogenic to many insect genera. In this study, we identified six Lecanicilliumspp. isolated strains (designated V1-V6) belonging L. lecanii (V1, V3 V5) attenuatum (V2, V4 V6). addition, these were used obtain new via protoplast fusion, nit mutants fo...

Emerald ash borer (Agrilus planipennis Fairmaire) (Coleoptera: Buprestidae), an invasive phloem-feeding insect native to Asia, threatens at least 16 North American ash (Fraxinus) species and has killed hundreds of millions of ash trees in landscapes and forests. We conducted laboratory bioassays to assess the relative efficacy of systemic insecticides to control emerald ash borer larvae in wint...

In the present study it was aimed to determine acute toxicity of zinc on southern medicinal leech Hirudo verbana Carena, 1820 that being used in ecotoxicological studies. The experiment conducted for 96 hours using semi-static bioassay method with replicate two times. leeches were exposed concentrations 6.25 mg/L, 12.50 25 50 100 mg/L and 200 respectively. As a result experiment, LC50 values 24...

the use of wood preservatives is a suitable method to protect wooden products from termites attack. the effect of a glycol borate wood preservative and termiticide (available commercially as bora-care) alone and in combination with furfural were evaluated against m. diversus silvestri (isoptera: termitidae). the major termite pest in khouzestan province, iran in choice and no-choice tests. it w...