Effect of Doses of Lecanicillium Lecanii on the Controlling of Rice Bug in Rice Plants

N. Nurlina, S. Purwanti, S. Hidayati, B. Gunawan, Mahrus Ali
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Abstract

Bug is an important pest of rice plants because it can reduce the quality and quantity of production, so it is essential to control its population. One of the efforts to control rice bugs is to use the biological agent Lecanicillium lecanii because it does not cause resistance and is not harmful to human health. This study aims to determine the effect of the number of doses of Lecanicillium lecanii application in controlling the pest population of walang sangit (rice bugs) in rice cultivation. The research method used a completely randomized design (CRD) with four treatment doses of the biological agent Lecanicillium lecanii with a rank of 9 x 107. P0 without biological agent treatment, P1 = using a biological agent with a dose of 10 ml.L-1  of water, P2 = using biological agent with a doses of 12.5 ml.L-1 of water, P3 = using biological agent with a dose of 15 ml.L-1 of water, and. Each treatment was repeated 4 times. The results of the study The application dose of 15 ml.L-1 gave the best results, and this is in accordance with the recommendations of BBPOPT Jatisari that the application dose of Lecanicillium lecanii is 15 ml.L-1 .
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不同剂量Lecanicillium对水稻害虫的防治效果
昆虫是危害水稻生产的重要害虫,会影响产量和质量,因此控制其数量至关重要。利用生物制剂Lecanicillium lecanii防治水稻害虫,因为它不会产生抗药性,对人体健康无害。本研究旨在探讨不同剂量的Lecanicillium lecanii在水稻栽培中对稻虱种群的控制效果。研究方法采用完全随机设计(CRD),采用4种处理剂量的Lecanicillium lecanii生物制剂,等级为9 × 107。P0未经生物制剂处理,P1 =使用10 ml - l -1水的生物制剂,P2 =使用12.5 ml - l -1水的生物制剂,P3 =使用15 ml -1水的生物制剂,和。每次治疗重复4次。本研究结果以15ml . l -1的施用剂量效果最好,这与BBPOPT Jatisari推荐的Lecanicillium lecanii施用剂量为15ml . l -1是一致的。
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