Toxicity of chlorpyrifos, spinosad and abamectin on cotton bollworm, Helicoverpa armigera and their sublethal effects on fecundity and longevity Abstract Cotton bollworm, Helicoverpa armigera Hubner is the most important pest of cotton, tomato and chickpea in Iran. The pest has been found to develop resistance against conventional insecticides. Using of […]

Asexual copy imposes evolutionary handicaps on asexual species, rendering them at risk of extinction, as a result of asexual replica generates novel genotypes and purges deleterious mutations at lower charges than sexual replica. Here, we report the primary case of whole asexuality in ants, the fungus-growing ant Mycocepurus smithii, the […]

Calcium carbide (CaC2) has occupied an important position among different sources of ethylene (C2H4) for improving growth and yield of vegetables. Calcium carbide dependent C2H4 can cause noteworthy improvements in growth, yield and fruit quality of vegetables but its effect on physiological and morphological parameters of vegetables is completely concentration […]

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