New Spanish predator can withstand greenhouse heat
Spanish insect control company Biomip (Almeria) is producing natural predators for use at higher temperatures against horticultural pests in greenhouses. Company manager Manuel Perez says that existing predators have not produced satisfactory results, requiring supplementary applications of pesticides in most cases. The main problem is that the pests develop as the temperature rises above 25 0 C, while the insect that is currently used, Aphidius colensani, cannot put up with heat above 18 0. However, Greenbug parastoid aphids ( Lysiphlebus testaceipes), which are native to Central and South America, can bear greenhouse temperatures. Biomip markets them in the form of infected mummies, from which at least 100 adults emerge, facilitating their distribution in greenhouses.