Effect of selected pesticides on survivality of Exserohilum longirostratum a bioherbicide for itchgrass


Citation

Mohammad Hailmi Sajili, . and Jugah Kadir, . and Nik Fadzlina Nik Ahmad, . and Poh Soon Gooi, . Effect of selected pesticides on survivality of Exserohilum longirostratum a bioherbicide for itchgrass. pp. 43-48. ISSN 2180-1983

Abstract

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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Abstract

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.

Additional Metadata

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Item Type: Article
AGROVOC Term: Exserohilum
AGROVOC Term: Rottboellia cochinchinensis
AGROVOC Term: Pesticides
AGROVOC Term: Herbicides
AGROVOC Term: Biological control agents
AGROVOC Term: Fungal spores
AGROVOC Term: Surfactants
AGROVOC Term: Sterilization
AGROVOC Term: Pathogens
AGROVOC Term: Spore germination
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 24 Apr 2025 06:28
URI: http://webagris.upm.edu.my/id/eprint/24078

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