Laboratory Evaluation of Three Bioagent Against the Egyptian Subterranean Termite Psammotermes Hypostoma (Desn.)

Abstract

Present work was conducted for studying biological control of the termite psammotermes hypostoma (sand termite) This study includes the following results: Toxicity results of Bacillus thuringiensis var. kurstaki against the termite psammotermes hypostoma revealed higher mortality values at the highest concentrations used 6gm/L, while the lowest concentrations gave moderate mortality values 53%. Use of Beauveria bassiana, indicated negligible mortality values ranged between from (3.6-16.2%) at the three tested concentration. Application of nematodes (Steinernema carpocapsae) against subterranean termites, mortality has begun 24 hours post-treatment. The first concentration represented (40.2%) mortality, the second concentration represented (78.2%), and the highest used concentration gave complete mortality values (100%). The LT 50 for Dipel 2X was 2.6, 3.01 and 4.9 days and 2.2, 3.2 and 7.3 days for Bacillus thuringiensis approximately.

Implementation of Eco-Friendly Control Tactics against Infestations of Aphis craccivora and Tetranychus urticae on Common Bean Plants

“…It evaporates readily from treated plants and have no residual effect (Peshin and Dhawan, 2009). In addition, jojoba oil act as aphidicidal activity for controlling aphid species especially A. craccivora by El-Harriry et al (1998).…”