Pesquisa Agropecuária Brasileira | |
Mechanical damage in cotton buds caused by the boll weevil | |
Roseane Cavalcanti Santos1  Lucília Helena Marcellino1  Rose Gomes Monnerat1  Eugen Silvano Gander1  | |
关键词: Gossypium hirsutum; Anthonomus grandis; abscission; animal feeding; Gossypium hirsutum; Anthonomus grandis; abscisão; alimentação animal; | |
DOI : 10.1590/S0100-204X2003001100015 | |
来源: SciELO | |
【 摘 要 】
The boll weevil (Anthonomus grandis Boheman) causes high levels of bud abscission in cotton plants due to feeding or oviposition punctures. It has been reported that abscission is mainly due to enzymes present in the insect's saliva, but mechanical damage could also contribute to square abscission. The objective of this paper was to undertake an analysis of the morphological damages caused by the insect in cotton squares using microscopy. Anthers and ovules are the main target of boll weevil feeding. The process initiates by perforation of young sepal and petal tissues and proceeds with subsequent alimentation on stamen and ovary leading to abscission of floral structures.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
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