The misuse of chemical insecticides has developed the phenomenon of habituation in the whitefly Bemisia tabaci (Gennadius) causing enormous economic losses under geothermal greenhouses in southern Tunisia. In order to develop means of biological control appropriate to the conditions of southern Tunisia, the efficacy of the native strain of the predator Nesidiocoris tenuis Reuter (Hemiptera: Miridae) and two entomopathogenic fungi (EPF) Beauveria bassiana and Lecanicillium muscarium was tested against Bemisia tabaci (Gennadius). Indeed, the introduction of N. tenuis in doses of 1, 2, 3, or 4 nymphs per tobacco plant infested by the whitefly led to highly significant reduction in the population of B. tabaci, than the control devoid of predator. The efficacy of N. tenuis was very high against nymphs and adults of B. tabaci at all doses per plant with a rate of 98%. Likewise, B. bassiana and L. muscarium, compared to an untreated control, showed a very significant efficacy against larvae and adults of B. tabaci. In addition, the number of live nymphs of N. tenuis treated directly or introduced on nymphs of B. tabaci treated with the EPF remained relatively high, exceeding 24.8 nymphs per cage compared to the control (28.6). It can be concluded that the native strain of N. tenuis and the EPF tested separately were effective against B. tabaci. Their combined use appears to be possible.

中文翻译：

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捕食的天然菌株的效果Nesidiocoris细叶路透和昆虫病原真菌白僵菌和蝇蚧霉抗烟粉虱突尼斯温室条件下（吉恩。）

化学杀虫剂的滥用已在粉虱“烟粉虱”（Gennadius）中形成了习惯化现象，在突尼斯南部的地热温室下造成了巨大的经济损失。为了开发适合突尼斯南部条件的生物防治手段，测试了天敌捕食者Nesidiocoris tenuis Reuter（半翅目：Miridae）和两种昆虫病原性真菌（EPF）球孢白僵菌和粘液Lecanicillium muscarium的天然菌株对烟粉虱的功效。 （根纳迪乌斯）。的确，与没有捕食者的对照相比，以粉虱为害的每株烟草植物以每只植物1、2、3或4个若虫的剂量引入猪笼草，导致烟粉虱的数量大大减少。Tenuis猪笼草对若虫和成虫的功效非常高。每株植物所有剂量的烟粉虱率达98％。同样，与未处理的对照相比，球孢杆菌和粘液芽孢杆菌显示出对烟粉虱的幼虫和成虫非常有效的功效。此外，直接用EPF处理或引入烟粉虱的若虫的活体若虫数量仍相对较高，与对照相比，每笼超过24.8例（28.6）。可以得出的结论是，分离的天然猪笼草菌株和EPF分别对烟粉虱有效。它们的组合使用看来是可能的。用EPF处理的烟粉仍较高，与对照组（28.6）相比，每笼超过24.8仙。可以得出结论，分离的天然猪笼草菌株和EPF对烟粉虱有效。它们的组合使用看来是可能的。用EPF处理的烟粉仍较高，与对照组（28.6）相比，每笼超过24.8仙。可以得出的结论是，分离的天然猪笼草菌株和EPF分别对烟粉虱有效。它们的组合使用看来是可能的。