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Mushroom Flies Management


The mushroom flies are major problem in seasonal mushroom farms.  Beside damaging mushrooms, these flies act as carrier of different moulds, nematodes and mites.  Since, mushrooms are very sensitive to pesticides and because of residue problems, very few pesticides have been recommended for mushrooms.  Short duration of crop further limits the scope of liberal application of even recommended pesticides.  In this endeavour to search for non-chemical control method, sticky trap using different coloured lights were evaluated.  Among all the colours, yellow coloured bulb was found to be most effective.  The trap consists of a 15 W yellow bulb and a polythene sheet of any size coated with mustard oil.  Bulb and sheet are hanged on the wall and switched on in the evening hours.  If room size is large than two traps can be used.  Since flies show phototactic behaviour in the morning and evening hours, all the flies will stick to the polythene sheet.  When sheet is fully covered by flies, it should be changed.  If on an average, a single fly lays 50 eggs and by trapping 2630 flies, 131500 larvae have been controlled without the use of insecticides.  This trap is highly popular among the mushroom growers and is widely adopted in almost all the mushroom growing States of India.  In addition to the trap, one or two spray application of decis or nuvan as adulticides on walls and floor is highly effective for fly control.  Presently farmers are following this method for fly control with good success without using any insecticide directly on the mushroom beds.





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Last Update : Thursday, June 6, 2024