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You searched for: Subject bolls Remove constraint Subject: bolls Subject term Lygus hesperus Remove constraint Subject term: Lygus hesperus
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1. Effects of Topping Pima Cotton on Lint Yield and Boll Retention

Author:
D. L. Kittock; K. E. Fry
Source:
Agronomy journal 1977 v.69 no.1 pp. 65-67
ISSN:
0002-1962
Subject:
Gossypium barbadense; Lygus hesperus; Pectinophora gossypiella; abscission; bolls; cultivars; fruit set; insect infestations; lint cotton; lint yield; plant damage; plant height; seed weight; stem nodes; yield components
Abstract:
... Substantial mid- and late-season topping of American Pima cotton (Gossypium barbadense L.) plants occurs in field plantings. Lygus bug (Lygus hesperus Knight) feeding is the apparent cause of topping. The effects of mid to late.season topping on lint yield and several yield components of ‘Pima S-4’ cotton were examined. Topping of Pima S-4 cotton in mid-July, early.August, and mid-August reduced p ...
DOI:
10.2134/agronj1977.00021962006900010017x

2. Development and Population Growth of Lygus hesperus on Selected Weed Hosts, Artificial Diet and Cotton in the Laboratory

Author:
Chen, Chen; Parajulee, Megha N.
Source:
Journal of economic entomology 2010 v.103 no.6 pp. 2009–2018
ISSN:
0022-0493
Subject:
cotton; survival rate; Salsola tragus; longevity; artificial diets; Gossypium hirsutum; fruiting; Medicago sativa; instars; weed hosts; Phaseolus vulgaris; alfalfa; green beans; Amaranthus palmeri; population growth; Lygus hesperus; bolls; adults; Texas
Abstract:
... Laboratory studies were conducted to obtain basic biological information of Lygus hesperus Knight (Hemiptera: Miridae) on alfalfa (Medicago sativa L.), pigweed (Amaranthus palmeri S. Wats.), Russian thistle (Salsola iberica Sennen and Pau), green bean (Phaseolus vulgaris L.), artificial diet, and cotton (Gossypium hirsutum L.) square and cotton boll at 27°C. The nymphal developmental duration was ...
DOI:
10.1603/EC09258

3. Laboratory Studies of Variations in Feeding Behaviors Among Lygus hesperus (Hemiptera: Miridae) of Different Gender and Reproductive States

Author:
Cooper, W. Rodney; Spurgeon, Dale W.
Source:
Environmental entomology 2011 v.40 no.2 pp. 367-373
ISSN:
0046-225X
Subject:
cotton; plant damage; sexual maturity; females; buds; insect pests; oviposition; anthers; bracts; males; gender differences; mating behavior; Gossypium; feeding behavior; Lygus hesperus; ingestion; bolls; adults
Abstract:
... Lygus hesperus Knight (Hemiptera: Miridae) is a key pest of cotton (Gossypium spp.) in the western United States that injures floral buds (squares) and developing fruit (bolls). Levels of Lygus-induced damage to cotton can vary by Lygus ages or gender, and these variations complicate interpretation of studies designed to elucidate Lygus and cotton interactions. Variations in observed injury may re ...
Handle:
10113/54746
DOI:
10.1603/EN10149

4. Injury to Cotton by Adult Lygus hesperus (Hemiptera: Miridae) of Different Gender and Reproductive States.

Author:
W. Rodney Cooper; Dale W. Spurgeon
Source:
Environmental entomology 2012 v.41 no.2 pp. 342-348
ISSN:
0046-225X
Subject:
cotton; females; buds; phytophagous insects; anthers; Gossypium hirsutum; males; crop damage; pests; Lygus hesperus; insect reproduction; bolls; adults; crops
Abstract:
... Lygus hesperus Knight (Hemiptera: Miridae) is a key pest of cotton (Gossypium spp.) in the western United States that injures floral buds (squares) and developing fruit (bolls). However, no clear relationship between Lygus population level and plant injury has been established. Age-dependent feeding activity by L. hesperus is a possible source of variation that has not been examined for its influe ...
Handle:
10113/57626
DOI:
10.1603/EN11236
PubMed:
22507007

5. Compensation of Lygus hesperus Induced Preflower Fruit Loss in Cotton

Author:
Barman Apurba K.; Parajulee Megha N.
Source:
Journal of economic entomology 2013 v.106 no.3 pp. 1209-1217
ISSN:
0022-0493
Subject:
Gossypium hirsutum; Lygus hesperus; bolls; cotton; fiber quality; fruit set; insecticides; insects; irrigation; lint yield; plant damage; rearing; Texas
Abstract:
... A 3-yr field study quantified the compensatory ability of cotton (Gossypium hirsutum L.) to preflower fruit damage by Lygus hesperus Knight in the Texas High Plains under limited irrigation. Experiments were designed to achieve varying levels of preflower fruit loss by augmenting Lygus bug populations using nymphal bugs reared in a laboratory colony. Treatments included 1) three bugs per plant (3P ...