Sunflower Development and Achene Damage Caused by Seed Weevil, Smicronyx fulvus (Coleoptera: Curculionidae)
- 31 March 1986
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 79 (2) , 355-358
- https://doi.org/10.1093/jee/79.2.355
Abstract
Sunflower, Helianthus annuus L., was planted on 4 and 28 May and 11 and 25 June 1984 to evaluate sunflower development on achene damage caused by seed weevil, Smicronyx fulvus LeConte. Weevil populations were highest on sunflower at anthesis substages R5.5 through R5.9 for all planting dates. Sunflower planted on 25 June sustained a higher percentage of damaged achenes than sunflower planted on the other dates. Sunflower planted on 4 May showed the lowest percentage of achene damage. Mean weevil populations were highest on sunflower planted 11 June when averaged over all plant stages.This publication has 6 references indexed in Scilit:
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