Field Evaluation of Some Microbial and Chemical Insecticides in Controlling Pachyzancla licarsicalis (Walk.) Lepidoptera: Pyralidae on Paspalum vagenatom Turf grass

Abstract

Insecticides; Lanet, Chlorofos and microbial insecticide Bacillus thuringiensis (Dipel 2X) at the recommended rates of application were evaluated for controlling on the larvae of Pachyzancla licarsicalis (Walk.) infesting Paspalum Vagenatom turf grass. Efficacy of different compound on the larvae of P. licarsicalis infesting P. Vagenatom turf grass. The data present indicated obviously the effectiveness of the used chemical insecticides (Lanet, Chlorofos) and microbial insecticide (Dipel 2X) on the population density reduction of P. licarsicalis Larvae on P. Vagenatom turf grass. Treatments were applied 5 times at Nasr City – Cairo Governorate during 2017 season and 5 times also in Smart Village at 6 October City – Giza Governorate during the same season 2017 to induce a perfect control of the P. licarsicalis and protect the plants for longer periods. Lanet was the most effective insecticide, recording the highest reduction percentages in Nasr City after 21 days and in Smart Village after 21 days post-initial application too (76.56 and 83.81%, respectively). Also in both Nasr City Cairo Governorate and Smart Village Giza Governorate Dipel was the least tested recording reduction percentages (58.33% and 78.75%), respectively after 21 days of the application. All compounds were differed significantly than control and not exhibited any phytotoxicity on P. Vagenatom leaves.