LABORATORY EVALUATION OF THREE BIOAGENT AGAINST THE EGYPTIAN SUBTERRANEAN TERMITE PSAMMOTERMES HYPOSTOMA (DESN.)

Document Type : Original Article

Authors

1 Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, Egypt.

2 Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.

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 LT50 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.