Ceraeochrysa cubana (Hagen) (Neuroptera: Chrysopidae) is an important predator with potential use to control various agricultural pests, including Diaphorina citri Kuwayama (Hemiptera: Liviidae). However, the indiscriminate use of insecticides may affect the performance of this lacewing, reducing its efficiency as a natural enemy. The goal of this study was to evaluate the lethal effect of imidacloprid, fenpropathrin, and dimethoate on C. cubana using different routes of exposure. Bioassays of topical, residual, ingestion, and residual + ingestion (simultaneous exposure) of the active ingredients on the lacewings were performed. The tolerance ratio (TR) was calculated from the lowest LC₅₀ observed. In addition to the lethal effect, we also studied the repellent effect of imidacloprid and fenpropathrin on first instar larva of C. cubana when Ephestia kuehniella Zeller (Lepidoptera, Pyralidae) eggs were treated with those insecticides. In the toxicity bioassay, the residual exposure of dimethoate was the most lethal (lower value of LC₅₀), followed by residual + ingestion exposure of dimethoate and fenpropathrin. With topical exposure, insecticides had similar toxicity and TR was between 20.76 and 23.61-fold. Imidacloprid was not toxic via ingestion and residual exposure; consequently, we did not estimate LC₅₀ in those cases. Ephestia kuehniella eggs treated with imidacloprid did not repel C. cubana larvae while those treated with fenpropathrin had a repellent effect. Dimethoate was toxic to C. cubana and it should be used with caution while imidacloprid has a lower lethal effect via residual and ingestion exposure and it does not have a repellent effect on C. cubana.

Ceraeochrysa cubana（Hagen）（Neuroptera：Chrysopidae）是一种重要的捕食者，具有潜在的用途，可用于控制各种农业害虫，包括Ciphorina citri Kuwayama（Hemiptera：Liviidae）。但是，不加选择地使用杀虫剂可能会影响这种草lace的性能，从而降低其作为天敌的效率。这项研究的目的是使用不同的暴露途径评估吡虫啉，联苯丙菊酯和乐果对古巴隐球菌的致死作用。进行了活性成分在草wing上的局部，残留，摄入和残留+摄入（同时暴露）的生物测定。公差比（TR）由最低的LC ₅₀计算得出观察到的。除了致死效果，我们还研究了吡虫啉忌避效果及对第一龄幼虫甲氰菊酯C.古巴当Ephestia kuehniella泽勒（鳞翅目，螟蛾科）卵用那些杀虫剂处理。在毒性生物测定中，乐果的残留暴露是最致命的（LC ₅₀值较低），其次是乐果和苯丙酸菊酯的残留+摄入暴露。局部暴露时，杀虫剂具有相似的毒性，TR为20.76至23.61倍。吡虫啉经食入和残留暴露无毒。因此，在这些情况下，我们没有估计LC ₅₀。吡虫啉治疗后的库埃氏菌卵未击退古巴念珠菌幼虫，而用苯丙酸菊酯处理的则具有驱蚊作用。乐果对古巴念珠菌有毒害，应谨慎使用，吡虫啉通过残留和摄食暴露具有较低的致死作用，对古巴念珠菌无驱避作用。