Effects of Adjacent Habitat on Populations of Stink Bugs (Heteroptera: Pentatomidae) in Cotton as Part of a Variable Agricultural Landscape in South Carolina

被引:44
作者
Reeves, R. B. [1 ]
Greene, J. K. [2 ]
Reay-Jones, F. P. F. [3 ]
Toews, M. D. [4 ]
Gerard, P. D. [5 ]
机构
[1] N Carolina State Univ, Dept Entomol, Raleigh, NC 27695 USA
[2] Clemson Univ, Dept Entomol Soils & Plant Sci, Edisto Res & Educ Ctr, Blackville, SC 29817 USA
[3] Clemson Univ, Dept Entomol Soils & Plant Sci, Pee Dee Res & Educ Ctr, Florence, SC 29506 USA
[4] Univ Georgia, Dept Entomol, Tifton, GA 31794 USA
[5] Clemson Univ, Dept Appl Econ & Stat, Clemson, SC 29634 USA
关键词
spatial-temporal variation; dispersion; edge effect; aggregation; NEZARA-VIRIDULA HEMIPTERA; FIBER QUALITY; DISPERSAL; DYNAMICS; ABUNDANCE; MARGINS; DAMAGE; YIELD; SEED; CROP;
D O I
10.1603/EN09194
中图分类号
Q96 [昆虫学];
学科分类号
摘要
The distribution of phytophagous stink bugs and associated boll injury in margins of cotton fields bordering various agronomic crops and woodlands were studied in 2007 and 2008. Two commercial cotton fields, ranging in size from 7.8 to 12.1 ha in Barnwell and Lee Counties, SC, were sampled weekly each year along predetermined transects at 0, 5, 10, and 25 m from the outside margin into the cotton field. Stink bugs were sampled using a ground cloth (0.91 by 0.91 m), and quarter-sized bolls (approximate to 2.5 cm in diameter) were collected and examined for internal damage. Density (bugs/row-m) of total stink bugs (adults plus nymphs) was greatest in cotton adjacent to peanut. Boll injury was significantly greater in cotton adjacent to soybean and peanut than in cotton next to other habitats, including corn, cotton, and woodlands, during midseason. Density of nymphs was greatest in cotton adjacent to peanut during mid and late season. Densities of total stink bugs and adults were greatest in cotton immediately adjacent (0 m) to all bordering crops and decreased as distance from the margin increased. Boll injury was greatest in cotton immediately adjacent (0 m) to the bordering crop in mid and late season. Because densities of stink bugs and boll injury vary spatially and temporally along field margins of cotton and can vary significantly based on the adjacent crop, such factors should be considered when developing integrated pest management strategies in cotton.
引用
收藏
页码:1420 / 1427
页数:8
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