Abstract
The two-spotted spider mite, Tetranychus urticae (Koch) is one of the major pest attacking different field crops, vegetables and fruits, while the predatory mite Phytoseiulus persimilis (Athias-Henriot) is well known as predator specialized on tetranychida mites. Nanotechnology is science of manipulating materials at nano-scale. Among the latest technological advancements. Nanotechnology and common solution of some compounds occupies a major position in pest control. So, the present investigation was carried out to evaluate some compounds (Cyhalothrin 5% SC, Abamectin Benzoate 1.8 % SC,Chlorpyrifos 48% SC and Methomyl 95 % WP) and their images Nan particles against T. urticae and P. persimilis in laboratory and under field conductions on cotton plants. Also, the LC50 of these chemicals on the mite and predatory mite were evaluated .The results revealed that Abamectin Benzoate nano particles had high toxic effect and high toxicity index , on the other hand Methomyl 95 nano partials was least toxic compounds to adult female T. urticae than the tested compounds in common solution. Moreover Cyhalothrin nano partial was the most effective compound against T. urticae eggs deposition and eggs hatchability of T. urticae. But Cyhalothrin nano partials had moderate effect on mite eggs and adults of T. urticae.Under field condition, all compounds of nano particles achieved good effect against T. urticae on cotton plants. But all compounds were safety to predatory mite P.persimilis in comparison with T. urticae. The current investigation could be recommended as an aspect of integrated pest management against T. urticae and P. persimilis both in the field.
Highlights
Tetranychid mites are common pests in agricultural systems, causing in many cases, greater economic losses than any other arthropod pests
While images nano particles Methomyl 95 was the least toxic compounds to adult females T.urticae with toxicity index of 0.07.Gavanji et al (2013) this study it was revealed that some concentrations of sulfur in nano scale can affect the spider mites and in this study showed that the sulfur in nano scale can be more effective and stable on T. urticae at different life stages
Common solution. (CS): The data shown in Tables (2) indicated that the mean number of eggs deposited by adult female mites T. urticae on leaf discs treated by different compounds which common solution .The result in Tables (2) suggested that common solution of Abamectin Benzoate was the most effective compounds on egg deposition and the effective in reducing mite fecundity by (75.9%)
Summary
Tetranychid mites are common pests in agricultural systems, causing in many cases, greater economic losses than any other arthropod pests.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
