DOSE-RESPONSE OF CHLORPYRIFOS TO CONTROL CORN ROOTWORM (Diabrotica speciosa) (Coleoptera: Chrysomelidae) IN CORN WHEN APPLIED THROUGH CENTER PIVOT

Autor:	ANTONIO LUIS FANCELLI, DURVAL DOURADO NETO, WULF SCHMIDT, PAULO AUGUSTO MANFRON
Jazyk:	angličtina
Rok vydání:	2004
Předmět:	chemigation insecticide insectigation: Zea mays L. Plant culture SB1-1110 Agriculture (General) S1-972
Zdroj:	Revista Brasileira de Milho e Sorgo, Vol 3, Iss 2, Pp 153-160 (2004)
Druh dokumentu:	article
ISSN:	1676-689X 1980-6477
Popis:	To determine which would be the rate of chlorpyrifos, applied through center pivot and to control corn rootworm, a trial was installed in 1995 in Nova Fátima, (PR) - Brazil, with four rates of chlorpyrifos plus the untreated. The product was injected at the center pivot base through a diaphragm injection pump, and results showed significant treatment differences which allowed to conclude that (i) chlorpyrifos is effective to control corn rootworm when applied through insectigation and that (ii) the rate needed to achieve maximum root damage of 2,5 (in a 1-6 scale) is 961 g of chlorpyrifos per hectare.
Databáze:	Directory of Open Access Journals
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