Efficacy of new insecticides against fruit boring noctuides on tomato.
2008
Sheykhi Garjan, A`ziz | Espahbodi Niya, A`bd Ol-A`li | Taqi Zadeh, Mas`ud | Khormali, Soleyman | A`ttaran, Mohammad Reza | Javad Zadeh, Mehran | Mohammadi Pur, A`li | Ahmadi, Mohammad | Saqqaei Niya, A`raz Mohammad | Heydar Zadeh, I`sa
Helicoverpa armigera is a key pest of tomato in Iran. It causes economic loss by reduction in fresh fruit quality and yield in tomato which could be suppressed using broad spectrum insecticides for 7-16 applications per season every year. The aim of this study was to introduce new and selective insecticides. This research carried out in three provinces, Ardebil, Golestan and Mazandaran in 2008. The result showed that mean efficacies of insecticides were different at á=1%, but there was no significant difference in interaction of treatments and locations. Carbaryl and spinosad were the most effective insecticides followed by both formulations of indoxacarb (EC and SC) and pridal. Lufenuron (52.58%) had the least efficacy among tested insecticides. Mean effectiveness of indoxacarb in two formulations SC150 (69.66%) and EC150 (74.3%) were the same. Thus spinosad and indoxacarb EC 150 can be recommended against fruit borer of tomato. The toxicity of lufenuron depends on timing of application and developmental stages of the pest.
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