Deltamethrin to control the boll weevil
The effect of the EC, FLOW and ULV formulation of deltamethrin and cypermethrin ED on the cotton boll weevil Anthonomus grandis Boheman, 1843 (Coleoptera: Curculionidae) at Campina Grande, PB, Brazil, was studied. The randomized complete block design with four replications and eight treatments as folows was used: Deltamethrin (Decis FLOW 50 SC) 10 and 12,5 g a.i./ha; (Decis ULV) 7,5; 10,0 and 12,5 g a.i./ha; (Decis EC) 12,5 g a.i./ha; Cypermethrin (Cymbush 30 ED white nozzle) 8,34 g a.i./ha and check. All the treatments were efficient to maintain the square infestation around the action level, which is 10% of infested squares, up to eight days after the third application. High weevil density may be reduced by three insecticide applications at a three-day interval.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | por |
| Published: |
Pesquisa Agropecuaria Brasileira
2014
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| Online Access: | https://seer.sct.embrapa.br/index.php/pab/article/view/13364 |
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