POTENSI CENDAWAN Beauveria bassiana (BALSAMO) VUILLEMIN ISOLAT BOGOR TERHADAP MORTALITAS LARVA PENGGEREK BATANG SENGON (Xystrocera festiva) PASCOE DI LABORATORIUM

Abstract

Xystrocera festiva (Coleoptera : Cerambicydae) is one of the highly potential pest attacking sengon (Paraserianthes falcataria L. Fosberg) plantation in field. One of the environmental friendly techniques to control this pest is by using entomophatogenical fungi, Beauveria bassiana (Balsamo) Vuillemin. This experiment was aimed to determining the efficacy of spore density level of B. bassiana Bogor Isolate against X. festiva population on sengon. The experiment had been carried out since July until August 2006 at the laboratory of Entomology and Phytophatology, Department of Pest and Plant Diseases Science, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor, West Java. The experiment was arranged in a randomized complete design consisted of six treatments and four replications. The results showed that each of the spore density level was able to control X. festiva larvae. The most effective concentration was 10 11 spore/ml which caused 100% mortality of X. festiva larvae at seventh days. However the mortality caused by spore density of 10 8 spore/ml 84.93% was not significantly different.