Pengaruh Kombinasi Jenis Cendawan Entomopatogen dan Frekuensi Aplikasi terhadap Mortalitas Kutu Kebul (Bemisia tabaci)

Abstract

One obstacle in current increased soybean production is impaired whitefly infestation. Economically, whitefly infestation can reduce yields by 40-80% if no control measures. Previous study showed that the Beauveria bassiana fungus was able to kill whitefly infestation, but the mortality of whitefly infestation only 50% by using a density of 10⁸/ml conidia. This study aimed to improve mortality whitefly infestation on soybean plants using three different types of fungi and frequency of application. This study was an experimental study using a randomized block design (RBD) with two treatment factors are the type of fungus (Lecanicillium lecanii, Metarizhium anisopliae and Beauveria bassiana) and the frequency of application (1 time/week,    2 times/week, 3 times/week and 4 times/week) with three repetitions. The data obtained were analyzed by using two-way program MSTATC. The conclusion of this study were a combination of types of fungi with the frequency of applications that effectively kills fleas whitefly is a type of fungus L. lecani with frequency application 3 times/week.