The effect of some botanical and chemical insecticides on the population of Heliothis armigera (Hübner)

زندی سوهانی, نوشین and یاراحمدی, فاطمه and خدادادزاده, حسین The effect of some botanical and chemical insecticides on the population of Heliothis armigera (Hübner). In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

Text I-00027-AC.pdf Download (563kB)

Abstract

Heliothis armigera (Hübner) is a polyphagous pest which causes a huge damage to tomato in Iran. In this study, the effects of botanical insecticides, Matrin and Tondexir, for controlling H. armigera were compared to chemical insecticides of Profenofos and Lufenuron. Spraying was done as the first instar larvae emerged and approximately one week after adults’ absorption by pheromone traps. One day before and 1, 3, 5, 7, and 10 days after spray the number of larvae on leaves and fruits were counted. The results showed that there were significant differences in number of larvae on leaves and fruits one day before treatment compared to control. Profenofos and Lufenuron were more effective in control of pests at 3 and 5 days after treatment on leaves and 3 days after treatment on fruits. At 7 days after treatment the effects of botanical insecticides were increased and had no difference with chemical insecticides. The population of the pest increased at 10 days after treatment therefore second spay is recommended after 7 days.

Actions (login required)

View Item