Paecilomyces fumosoroseus
| Paecilomyces fumosoroseus | |
|---|---|
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Ascomycetes |
| Order: | Eurotiales |
| Family: | Trichocomaceae |
| Genus: | Paecilomyces |
| Species: | P. fumosoroseus |
| Binomial name | |
|
Paecilomyces fumosoroseus (Wize) A.H.S.Br. & G.Sm. (1957) |
|
| Synonyms | |
|
Isaria fumosorosea Wize (1904) Spicaria fumosorosea (Wize) Vassiljevsky (1929) |
|
Isaria fumosorosea Wize (1904) Spicaria fumosorosea (Wize) Vassiljevsky (1929)
Paecilomyces fumosoroseus is the widely known name of an entomopathogenic fungus, whose currently accepted name is Isaria fumosorosea. It shows promise as a biological pesticide with an extensive host range.
When a conidium or blastospore of Paecilomyces fumosoroseus lands on a suitable host, it produces enzymes to penetrate the insect's cuticle. A germ tube then grows into the haemocoel and the fungus proliferates inside the insect’s body. The fungus can also enter through the spiracles, the mouth or the anal opening. The mycelia spread in the hemolymph and tissues, eventually emerging from the insect and producing conidia. Mortality of the insect has been ascribed to the drainage of its nutrients, the destruction of its tissues and the release of toxins.
This fungus has a wide host range that includes insects in over twenty five different families and many species of mite. Agricultural pest insects which are susceptible to infection include the diamondback moth (Plutella xyllostella), the Russian wheat aphid (Diuraphis noxia) and the silverleaf whitefly (Bemisia argentifolii). Among mites, susceptible species include the spotted spider mite (Tetranychus urticae), the European red mite (Panonychus ulmi), the brown mite (Byrobia rubrioculus) and the apple rust mite (Aculus schlectendali).
Paecilomyces fumosoroseus has been used to control insect pests of plants grown for the production of cut flowers, ornamentals growing in greenhouses and nurseries, vegetable and cole crops, cotton, maize, rice and plantation crops.
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