Download Service and Regulatory Announcements: November-December, 1919 (Classic Reprint) - U.S. Department of Agriculture | ePub Online

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Excerpt from Service and Regulatory Announcements: November-December, 1919The larvae of the pink bollworm have been found to be very resistent to water and have survived 48 hours' immersion, whereas larvae in dry bolls have survived a period of 7 or 8 days. This probably gives an explanation of one of the means of spread of larvae, especially in a district like that of the

Title : Service and Regulatory Announcements: November-December, 1919 (Classic Reprint)
Author : U.S. Department of Agriculture
Language : en
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Type : PDF, ePub, Kindle
Uploaded : Apr 11, 2021

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