Investigation of spray application of microbial herbicides using Alternaria alternata on Amaranthus retroflexus
作者： J. Lawrie , M. P. Greaves , V. M. Down , N. M. Western , S. J. Jaques
DOI: 10.1080/09583150220146086
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摘要: Inclusion of Alternaria alternata conidia in a spray formulation affected the distribution pattern on target. The dry weight Amaranthus retroflexus plants was reduced by more than 83% when A. (107 ml -1 ) were applied at 200 L ha or greater and given 24 h dew period. At low application volumes (25 50 plant only 29 54%. After 7-8 period, conidial germination leaf surface 11-19%. This increased to 62-91% after Counts leaves indicated that up 86% sprayed not retained target plant, did reach it. is reflected lesion numbers per unit area being 3-5% calculated theoretical numbers. results cast doubt suitability as microbial herbicide for control Am. .
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