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Early-season Cotton Square Removal with Ethephon and Initiation of Pink Bollworm Infestations

Ethephon applied at rates of 0.50 or 0.75 lb AI/acre removed early-season squares and delayed initiation of pink bollworm, Pectinophora gossvpiella (Saunders) infestations and reduced the number of infested bolls on early-season fruiting branches, without affecting yield except for ethephon at 0.751b AI /acre at one location. Higher rates of application reduced yields. In most cases, ethephon treatments delayed flowering but plants compensated for removal of early- season squares and equalled or surpassed accumulated flowering of untreated control plants later in the season.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/208330
Date January 1990
CreatorsHenneberry, T. J., Bariola, L. A., Chu, C. C., Meng, T. Jr., Deeter, B.
ContributorsSilvertooth, Jeff, Bantlin, Marguerite
PublisherCollege of Agriculture, University of Arizona (Tucson, AZ)
Source SetsUniversity of Arizona
Languageen_US
Detected LanguageEnglish
Typetext, Article
Relation370081, Series P-81

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