Mohammadi Goltapeh E, Shams-bakhsh M, Pakdaman B S. Sensitivity of the Nematophagous Fungus Arthrobotrys oligospora to Fungicides, Insecticides and Crop Supplements Used in the Commercial Cultivation of Agaricus bisporus. JAST 2008; 10 (4) :383-389
URL:
http://jast.modares.ac.ir/article-23-12283-en.html
1- Department of Plant Pathology, College of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic
of Iran.
2- Department of Microorganisms, Bio-resources and Biosafety, Agricultural Biotechnology Research Institute
of Iran, Karaj, Islamic Republic of Iran.
Abstract: (6603 Views)
The effect of various pesticides (diflubenzuro, malathion, mancozeb and carbendazim), disinfectants (calcium hypochlorite and formaldehyde) and oil cakes (sunflower and soy-bean oil cakes) commonly used as supplements in mushroom cultivation on the growth of the nematophagous fungus, Arthrobotrys oligospora, was studied under in vitro conditions. Carbenazim caused 99% inhibition of radial mycelial growth in Petri dishes at all concen-trations tested (10-40 µg a. i. ml-1) in comparison to non treated dishes. Mancozeb caused 43% and 23% inhibition at 250 and 500 µg a. i. ml-1 respectively and 99% inhibition at concentration of 1000 µg a. i. ml-1 and above. Diflubenzuro and malathion at 10-40 µg a. i. ml-1 caused 30-41% and 24-54% inhibition, respectively. Formalin (0.5-2.0% v/v) inhib-ited growth of A. oligospora completely. However, calcium hypochlorite, sunflower and soybean oil cake at concentrations of up to 2.0% w/v caused less than 3.5% inhibition.
Received: 2010/01/28 | Accepted: 2010/01/28 | Published: 2010/01/28