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Survival of boll weevils exposed to freezing temperatures with and without ice nucleators



Survival of boll weevils exposed to freezing temperatures with and without ice nucleators



1996 Proceedings Beltwide Cotton Conferences, Nashville, TN, USA, January 9-12, 1996: Volume 2: 969-972



The impact of the presence of ice on the survival of overwintering adults of Anthonomus grandis grandis was studied in 2 sets of experiments. In the first, groups of weevils were exposed to -3.9, -7.0, and -9.4 degrees C for 6 h either with or without free water present. Water was provided by sandwiching the weevils between two layers of wet cotton cloth. Whenever freezing of the water in the cloth took place, survival was very low, regardless of temperature.

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Accession: 002973126

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