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Mycodiplosis oidii (predatory mosquito)
Mycodiplosis oidii (Mosquito depredador)
How do they act?
Mycodiplosis oidii is a tiny predatory fly (midgeon) that acts in a highly specialized manner against plant pathogenic fungi, primarily those of the Oidium genus. The larva of Mycodiplosis oidii feeds directly on the fungal mycelium and spores, damaging their structure and reducing their reproductive capacity. This behavior makes it a valuable ally in biological control, as it does not attack plants or leave residues; it simply consumes the pathogen as a food source.
How to attract them?
To attract Mycodiplosis oidii to the crop environment, it is essential to create a favorable habitat. This includes maintaining good biodiversity in the garden or field, avoiding the use of chemical fungicides that could affect its development. Its presence can also be encouraged by maintaining humid and shady areas, as these conditions favor both the development of the fungus (its food) and the insect. Some organic farming systems employ strategies such as the use of trap crops or the controlled introduction of laboratory-bred individuals.
What pests do they control?
This species is especially effective in controlling diseases such as powdery mildew (also known as ash) and rust, two of the most common and problematic fungal diseases affecting many horticultural, fruit, and ornamental crops. By actively consuming the reproductive structures of these fungi, Mycodiplosis oidii helps naturally slow their spread, reducing the need for chemical treatments and promoting a healthier ecological balance in crops.
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