Asiye DERIN, Hasan KOCER, Bilgin GUVEN, and Aysel TUCER
Plant Protection Research Institute, 35040 Bornova, Izmir, TURKEY

This study was carried out for comparing the applications using motorized mistblower and knapsack sprayer based on the dosage per decare and the concentration of pesticide in100 L water used against the maize pests in 1995 and 1996.

As a result of the study carried out in 1995, chemical control applications with motorized mistblower were found unsatisfactory. For that reason, the same study was carried out using only knapsack sprayer in 1996.

In 1995, in applications of knapsack sprayer the average effects were 87.41% and 92.10%, according to contamination ratio of pest and also 90.86% and 93.81% according to the number of the alive larvae, respectively. They were found in the same group due to statistical analysis. In the same application with knapsack sprayer in 1996 the average effects were 84% and 89%, respectively.

As a result of two years studies, it was noticed that the applications on maize using knapsack sprayer was more suitable than motorized mistblower. Both application types are found out to be sufficient effective. However, the quantity of pesticide in 100 L water that applied in 3 treatments was less than the recommended quantity. This is very important for economy and environmental pollution. Consequently, it is suggested that the application based on concentration of pesticide in 100 lt. water is more suitable.