01515naa a2200241 a 450000100080000000500110000800800410001910000220006024500870008226000090016950001310017852006860030965000150099565000190101065000230102965000230105265300140107565300250108970000220111470000270113670000180116377300920118111096782023-03-30       2003    bl uuuu     u00u1 u    #d1 aSANTOS, R. C. dos  aMechanical damage in cotton buds caused by the boll weevil.h[electronic resource]  c2003  aNotas Científicas. Título em português: Danos mecânicos em botões florais de algodão causados pelo bicudo-do-algodoeiro.  aThe 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.  aabscission  aanimal feeding  aAnthonomus Grandis  aGossypium Hirsutum  aabscisão  aalimentação animal1 aMARCELLINO, L. H.1 aPONTES, R. G. M. S. de1 aGANDER, E. S.  tPesquisa Agropecuária Brasileira, Brasília, DFgv. 38, n. 11, p. 1351-1356, nov. 2003