Leptolegnia chapmanii is pathogenic to mosquito larvae. The compatibility between L. chapmanii and two insect growth regulators (IGR), diflubenzuron and neem oil, was evaluated. L. chapmanii was grown on culture media containing different concentrations of each IGR. The mycelial growth was significantly reduced with the highest concentrations of IGR (F_6,98 = 268, p < 0.05). However, the production of zoospores (F_6,56 = 0.93, p > 0.05) and the larval mortality of Aedes aegypti (F_6,56 = 0.95, p > 0.05) were not significantly different among treatments. Furthermore, the percentage of adult emergence in the presence of different concentrations of diflubenzuron or a neem formulation was determined, and the pathogenic activity of zoospores was evaluated at the concentrations that inhibit the emergence at 30, 50 and 90%. The pathogenicity of zoospores was not significantly different among treatments (F_6,14 = 0.54, p > 0.05), and the larval mortalities were above 90% in all cases.

Leptolegnia chapmanii对蚊子幼虫具有致病性。对L. chapmanii与两种昆虫生长调节剂 (IGR)、除虫脲和印楝油之间的相容性进行了评估。L. chapmanii在含有不同浓度的每种 IGR 的培养基上生长。最高浓度的 IGR 显着降低了菌丝体生长 ( F _6,98  = 268, p  < 0.05)。然而，游动孢子的产生 ( F _6,56  = 0.93, p  > 0.05) 和埃及伊蚊的幼虫死亡率( F _6,56  = 0.95, p > 0.05) 在处理之间没有显着差异。此外，测定了在不同浓度的除虫脲或印楝制剂存在下成虫出现的百分比，并在抑制出现的浓度为 30、50 和 90% 时评估了游动孢子的致病活性。各处理间游动孢子的致病性无显着差异（F _6,14  = 0.54，p  > 0.05），幼虫死亡率均在90%以上。