Study on efficiency of commercial neem to control of cucumber leaf miner and its comparision with common chemical insecticides.
2006
Nam Var, Peyman | Morovvati, Mohsen | Bani A`meri, Vali Ol-Lah
Different species of cucumber leaf miner are serious pest of vegetable crops in greenhouse and open fields, specially cucumber and tomato. To reduce the chemical residues on these crops, it is essential to decrease the chemical usage. Botanical insecticides specially neem oil are very important alternatives. In the first year, to study the neem product efficacy, the efficiency of 5 different concentrations of Neem Azal which were 0.5, 1, 1.5, 2 and 3 % evaluated in a complete block design with control as 6 treatments and three replications. Results showed that treatments of 1.5 ,2 and 3% with causing more than 80% mortality are the best and have significant difference with others. In the second year, the efficiency of two concentrations(2 and 3%) of Neem Azal which were selected from the last trial were evaluated in comparison with chlorpirophos, abamectin and permetrin. Results revealed that two neem concentrations had no significant difference campared with chlorpirophos and abamectin.
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