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Ben‐Yephet, Y., Division of Plant Pathology, Agricultural Research Organization, Volcani Centre, Bet Dagan, Israel
Letham, D., Biology Branch, Biological and Chemical Research Institute, PMB 10, Rydalmere, New South Wales, 2116, Australia
Evans, G., Biology Branch, Biological and Chemical Research Institute, PMB 10, Rydalmere, New South Wales, 2116, Australia
The toxicity of two fumigants to microsclerotia (MS) of Verticillium dahliae in air and in soil was determined in sealed containers. 1, 2‐Dibromoethane (DBE, ethylene dibromide) at 470 μ ml−1 of air, or at 12.5 μ g−1 of soil, killed 97% of the MS, both after incubation for 16 days. 1, 3‐Dichloropropene (1, 3‐D) at 20 μ ml−1 of air, however, killed 100% of the MS after incubation for 30 h, and at 100 μ g−1 of soil after incubation for 3 days. Higher temperatures increased the toxicity of both DBE and 1, 3‐D to the MS. The toxicity of DBE increased with increase in soil moisture between 0–80% of field capacity while the toxicity of 1, 3‐D increased between 0–20% of field capacity and was constant between 20–80% of field capacity. Copyright © 1981 John Wiley & Sons, Ltd
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Toxicity of 1,2‐dibromoethane and 1,3‐dichloropropene to microsclerotia of Verticillium dahliae
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Ben‐Yephet, Y., Division of Plant Pathology, Agricultural Research Organization, Volcani Centre, Bet Dagan, Israel
Letham, D., Biology Branch, Biological and Chemical Research Institute, PMB 10, Rydalmere, New South Wales, 2116, Australia
Evans, G., Biology Branch, Biological and Chemical Research Institute, PMB 10, Rydalmere, New South Wales, 2116, Australia
Toxicity of 1,2‐dibromoethane and 1,3‐dichloropropene to microsclerotia of Verticillium dahliae
The toxicity of two fumigants to microsclerotia (MS) of Verticillium dahliae in air and in soil was determined in sealed containers. 1, 2‐Dibromoethane (DBE, ethylene dibromide) at 470 μ ml−1 of air, or at 12.5 μ g−1 of soil, killed 97% of the MS, both after incubation for 16 days. 1, 3‐Dichloropropene (1, 3‐D) at 20 μ ml−1 of air, however, killed 100% of the MS after incubation for 30 h, and at 100 μ g−1 of soil after incubation for 3 days. Higher temperatures increased the toxicity of both DBE and 1, 3‐D to the MS. The toxicity of DBE increased with increase in soil moisture between 0–80% of field capacity while the toxicity of 1, 3‐D increased between 0–20% of field capacity and was constant between 20–80% of field capacity. Copyright © 1981 John Wiley & Sons, Ltd
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