Study of the efficiency of Neonicotinoid Insecticides for control of grape cicada, Psalmocharias alhageos (Hem.: Cicadidae)
2011
Farazmand, Hossein, Iranian Research Institute of Plant Protection | shekhyeGorjan, Aziz | Dashtbani, Khadijeh
Grape cicada, Psalmocharias alhageos (Hem.: Cicadidae), is one of the most important pests of vine trees in Iran. Main damage of P. alhageos is caused by long feeding of nymphs on the vine roots and laying eggs of females under the bark of the shoots. The adults emerge from mid June. In this study, efficacy of different concentrations of imidacloprid and thiamethoxam by soil application were investigated. The treatments were compared considering grape vine yield and the number of pupal exuviae under vines and. Maximum and minimum numbers of pupal exuviae were observed in control and imidacloprid treatments, respectively. The highest and lowest of grape vine yield were observed in imidacloprid and control treatments, respectively. Based on treatments ranking, application of imidacloprid (15-20 ml at each vine tree) at nymph's emergence time from soil was effective in decreasing vine cicada damage and increasing grape vine yield. So, efficacy of imidacloprid iraninan formulation was less than foreign imidacloprid (ConfidorýÖ, Sc350). Key Words: grape vine, vine cicada, Psalmocharias alhageos, control methods, chemical control, imidacloprid, thiamethoxam
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