Flies are insects, widespread in most habitats, and in particular where there is greater availability of organic substrates. In different environments, flies, when they exceed certain levels of population, can cause various discomforts and problems that can be summarized in:
• annoyance to animals and operators with negative repercussions on production and work performance
• economic losses on farms
• inconvenience for urban areas located near structures favorable to insect development
• possible transmission of diseases and related complaints and inspections by the local health authorities.
Like all living organisms, flies also have natural enemies, which, living at their expense, limit their development. The biological fight can use these antagonists, introducing them in the environments of flies proliferation, in order to keep the populations under control. They are small hymenopterans that, to feed and reproduce, actively seek pupae of flies, parasitizing them through the deposition of more eggs inside them. In this way the biological cycle of the fly is interrupted, preventing the birth of the adult. At the end of the development of parasitized fly pupae, other parasitoids come out, which start a new cycle of biological control.
Use
Nasonia Vitripennis Ref. NFPNV is used inside the boxes, better if on the sides, in the manure trees, and in all those places where you see larvae. Nasonia vitripennis is available in packs of 15,000 or 150,000 individuals. Each pack contains parasitized fly pupae with parasitoids close to flicker.
The content must be distributed broadcasts directly on the organic substrates in which larvae of flies develop.
Adult parasitoids, which actively research fly pups from parasitize, come out from the distributed pupae.
Storage
The packaging must be used as soon as possible or stored in a cool place for 1-2 days.
Spalangia cameroni Rif. SPL is a parasitoid of fly pups, inside which it lays its eggs. From these will develop small larvae that will grow at the expense of the content of the fly pupa. Parasitoids will emerge from the parasitized pupae and the life cycle of the fly will be interrupted.
Spalangia cameroni is a small insect (2.5 to 3 mm) and its life cycle is completed, at 26 ° C, in about 25 days. It is a solitary parasitoid and therefore only one Spalangia adult originates from a single parasitized fly pupa. A cosmopolitan parasitoid that is very present in our environments. It has a life cycle longer than other parasitoids and settles more slowly in the environments in which it is inserted. Once installed, however, it is able to carry through many cycles of parasitization.
Use
It is advisable to combine the Spalangia with the parasitic Nasonia vitripennis Ref. NFPNV.
The first introductions must be made at the beginning of Spring, generally from mid-March and the month of April. Spalangia launches c. they must continue every fortnight for the whole hot season.
Each pack contains parasitized fly pupae, with parasitoids close to flicker. The application is identical to that provided for Nasonia Vitripennis.
Adult parasitoids, which actively research fly pups from parasitize, come out from the distributed pupae.
Storage
The packaging must be used as soon as possible or stored in a cool place for 1-2 days.