Effect of selected pesticides on Survivality of Exserohilum Longirostratum, A Bioherbicide for Itchgrass
Four commercial formulations of herbicides and four fungicides were evaluated for their toxic effects on germination of Exserohilum longirostratum. At the recommended rates, one of the herbicides recommended for grassy weed control was compatible with E. longirostratum. E. longirostratum conidia g...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2017
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| Subjects: | |
| Online Access: | http://eprints.unisza.edu.my/5449/1/FH02-FBIM-17-11574.pdf http://eprints.unisza.edu.my/5449/ |
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| Summary: | Four commercial formulations of herbicides and four fungicides were evaluated for their toxic effects on
germination of Exserohilum longirostratum. At the recommended rates, one of the herbicides recommended for
grassy weed control was compatible with E. longirostratum. E. longirostratum conidia germination was not affected
by Paraquat but was totally inhibited by Glufosinate, Glyphosate and Fenoxyaprop-p-ethyl. At lower
concentrations, most herbicides were less toxic except Rumpas. The fungicide Benlate at recommended rate has
no effect on E. longirostratum. Score and Topper reduced germination more than 50% at recommended rate and
growth was distorted. Spore germination was totally inhibited at all concentrations with Dithane. Based on high
germination and appresorium development, Sapol and Tween 20 is suitable as carrier for this fungus. Paraquat
and Bentazone can be used with E. longirostratum either with tank mixing or as split applications but at
concentration less than the recommended rate. |
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