Studies on the Control of Mycogone perniciosa Magn. in Cultivated Mushroom (Agaricus bisporus(Lange) Sing)

Benomyl has been used to control Mycogone perniciosa for several years, the reduced effect of Benomyl against Mycogone perniciosa has been reporteod here. These experiments were carried out to substitute Benomyl with other chemicals. The isolates of Mycogone perniciosa those Benomyl tolerant are proved to be sensitive to Vitathiram, Difolatan, Ambam and RH-2161. However, these chemicals brought undisirable effects on the cultivation. Basamid and Vapam are found not to be harmful to Agaricus bisporus' mycelial growth in casing soil, these chemicals were treated up to 100 ppm of concentration for 15days in advance of use. Although Mycogone perniciosa was tolerant to Benomyl, Basamid and Vapam were very effective and enabled it to produce higher levels of mushroom sporophores.