In the last few years, Dactylopius opuntiae has seriously harmed the cactus pear in Morocco. Chemical control and predators are presently the predominant method used to control this scale pest. In this study the lethal and sublethal effects of the insecticides: d-limonene (60 g/l) 150 cc/hl, mineral oil (780 g/l) 2400 cc/hl, and potassium salts of fatty acid (500 g/l) 40 cc/hl on Cryptolaemus montrouzieri (mealybug destroyer) were evaluated under laboratory conditions at 26±2°C, 60±10 % RH and 12:12 h L:D regime. The results of this study show that potassium salts of fatty acid (500 g/l) 40 cc/hl seems to be less compatible with C. montrouzieri. This chemical insecticide was decreased oviposition period, adult longevity, fecundity, significantly decreased females fertility compared to other treatments, caused a high percentage of mortality for all larval stages and pupa compared to all other treatments tested, caused significant reductions in percentage of egg hatching, and decreased significantly the longevity of adult stage compared to others treatments. Mineral oil (780 g/l) 2400 cc/hl seems to be most compatible with C. montrouzieri. This biological insecticide does not affect significantly the females fertility and does not cause any significant reduction in percentage of egg hatching (100 %) compared to the control treatment. In addition, d-limonene (60 g/l) 150 cc/hl, and mineral oil (78 %) 2400 cc/hl treatments do not affect significantly long term population parameters, including T, r_m, λ, and DT compared to control treatment. Thus, both biological insecticides mineral oil (780 g/l) 2400 cc/hl and d-limonene (60 g/l) 150 cc/hl could be used as part of the integrated pest management strategy using C. montrouzieri and more attention should be paid to the use of chemical insecticide potassium salts of fatty acid (500 g/l) 40 cc/hl.

在过去的几年里，Dactylopius opuntiae严重损害摩洛哥的仙人掌。目前，化学防治和捕食者是控制这种鳞片害虫的主要方法。在这项研究中，杀虫剂的致死和亚致死作用：d-柠檬烯（60 g / l）150 cc / hl，矿物油（780 g / l）2400 cc / hl，以及脂肪酸钾盐（500 g / l） ）在实验室条件下，在26±2°C，60±10％RH和12:12 h L：D的条件下，评估了Cryptolaemus montrouzieri（灭甲虫）上的40 cc / hl 。这项研究的结果表明，脂肪酸钾盐（500 g / l）40 cc / hl似乎与C. montrouzieri不兼容。与其他疗法相比，这种化学杀虫剂的产卵期缩短，成年寿命，繁殖力降低，雌性生育力显着降低，与所测试的所有其他疗法相比，所有幼虫期和的死亡率均较高，导致卵孵化率显着降低，与其他治疗相比，成人阶段的寿命显着降低。矿物油（780 g / l）2400 cc / hl似乎与蒙特梭菌（C. montrouzieri）最相容。与对照处理相比，这种生物杀虫剂不会显着影响女性的生育能力，也不会引起卵孵化率的任何显着降低（100％）。此外，与相比，d-柠檬烯（60 g / l）150 cc / hl和矿物油（78％）2400 cc / hl处理不会显着影响长期种群参数，包括T，r _m，λ和DT控制治疗。因此，生物杀虫剂矿物油（780 g / l）2400 cc / hl和d-柠檬烯（60 g / l）150 cc / hl都可以用作使用蒙特氏梭菌的综合害虫管理策略的一部分，应引起更多注意应使用40 cc / hl的脂肪酸化学杀虫剂钾盐（500 g / l）。