In the course of the investigations on the biology of Anthonomus grandis at Victoria, Tex., during the summer of 1913, under the direction of Mr. W. D. Hunter, the writer was able to conduct a number of experiments on the possibility of the boll weevil's breeding in some of the native malvaceous plants. Since the results secured differ with the plants, they are grouped under the various species...

Field experiments in the subtropical Lower Rio Grande Valley of Texas were conducted to determine the extent of adult boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), dispersal from cotton, Gossypium hirsutum L., fields during harvest operations and the noncotton-growing ("overwinter") period between 1 September and 1 February. Using unbaited large capacity boll weev...

This study examined a non-insecticidal tactic for suppressing boll weevil, Anthonomus grandis grandis Boheman, damage to cotton, Gossypium hirsutum L. In cage assays, kaolin, a reflective white mineral, applied to excised cotton squares or to the cotton foliage, initially resulted in lower levels of boll weevil injury to squares than nontreated squares. Boll weevil oviposition and feeding on ka...

Cotton host plant resistance research was initiated with the establishment of Boll Weevil Research Laboratory in 1960. objectives were to conduct and develop technology that ultimately could be used eradicate boll weevil. Early concentrated on developing techniques screening germplasm for resistance. A full-scale weevil eradication trial began southern Virginia eastern North Carolina 1978 after...

irrigation water and nitrogen fertilizer are two important factors in increasing the yield and yield components of cotton. in order to evaluate effects of irrigation methods, various levels of water and nitrogen fertilizer on yield and yield components of cotton were studied at hashemabad cotton research station of gorgan in 2008. the experiment was conducted in split-split plots design with th...

In the 1996 Winter issue of Fruit Notes, we reported results of our 1995 research on plum curculio responses to unbaited “Tedders” traps. These traps are pyramidal in shape, dark in color, and are placed on the ground. They capture curculios that arrive on the trap surface and subsequently crawl upward to the tip, where they enter an inverted screen funnel (a cotton boll weevil trap top) placed...

Wanjura, D.F. and Barker, G.L., 1985. Cotton lint yield accumulation rate and quality development. Field Crops Res., 10: 205--218. Crop production management during the period of boll setting and maturation of cot ton (Gossypium hirsutum L.) is critical in determining lint yield and quality. A field investigation conducted at Lubbock, Texas, during 1977--1980 included three cultivars to study t...