Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1603/EC11089 |
Impact of Lygus spp. (Hemiptera: Miridae) on Damage, Yield and Quality of Lesquerella (Physaria fendleri), a Potential New Oil-Seed Crop | |
Naranjo, Steven E.1; Ellsworth, Peter C.2; Dierig, David A.1,3 | |
通讯作者 | Naranjo, Steven E. |
来源期刊 | JOURNAL OF ECONOMIC ENTOMOLOGY |
ISSN | 0022-0493 |
EISSN | 1938-291X |
出版年 | 2011 |
卷号 | 104期号:5页码:1575-1583 |
英文摘要 | Lesquerella, Physaria fendleri (A. Gray) S. Watson, is a mustard native to the western United States and is currently being developed as a commercial source of valuable hydroxy fatty acids that can be used in a number of industrial applications, including biolubricants, biofuel additives, motor oils, resins, waxes, nylons, plastics, corrosion inhibitors, cosmetics, and coatings. The plant is cultivated as a winter-spring annual and in the desert southwest it harbors large populations of arthropods, several of which could be significant pests once production expands. Lygus spp. (Hemiptera: Miridae) are common in lesquerella and are known pests of a number of agronomic and horticultural crops where they feed primarily on reproductive tissues. A 4-yr replicated plot study was undertaken to evaluate the probable impact of Lygus spp. on production of this potential new crop. Plant damage and subsequent seed yield and quality were examined relative to variable and representative densities of Lygus spp. (0.3-4.9 insects per sweep net) resulting from variable frequency and timing of insecticide applications. Increasing damage to various fruiting structures (flowers [0.9-13.9%], buds [1.2-7.1%], and seed pods [19.4-42.5%]) was significantly associated with increasing pest abundance, particularly the abundance of nymphs, in all years. This damage, however, did not consistently translate into reductions in seed yield (481-1,336 kg/ha), individual seed weight (0.5-0.7 g per 1,000 seed), or seed oil content (21.8-30.4%), and pest abundance generally explained relatively little of the variation in crop yield and quality. Negative effects on yield were not sensitive to the timing of pest damage (early versus late season) but were more pronounced during years when potential yields were lower due to weed competition and other agronomic factors. Results suggest that if the crop is established and managed in a more optimal fashion, Lygus spp. may not significantly limit yield. Nonetheless, additional work will be needed once more uniform cultivars become available and yield effects can be more precisely measured. Densities of Lygus spp. in unsprayed lesquerella are on par with those in other known agroecosystem level sources of this pest (e. g., forage and seed alfalfa, Medicago sativa L.). Thus, lesquerella production may introduce new challenges to pest management in crops such as cotton. |
英文关键词 | Lygus hesperus Lygus elisus Lygus lineolaris Physaria fendleri crop damage |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000295923100017 |
WOS关键词 | PLANT BUGS ; HETEROPTERA ; CANOLA ; ALFALFA ; INJURY ; COTTON ; ACID |
WOS类目 | Entomology |
WOS研究方向 | Entomology |
来源机构 | University of Arizona |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/169063 |
作者单位 | 1.ARS, USDA, Arid Land Agr Res Ctr, Maricopa, AZ 85138 USA; 2.Univ Arizona, Maricopa Agr Ctr, Dept Entomol, Maricopa, AZ 85138 USA; 3.ARS, USDA, Natl Ctr Genet Resource Preservat, Ft Collins, CO 80521 USA |
推荐引用方式 GB/T 7714 | Naranjo, Steven E.,Ellsworth, Peter C.,Dierig, David A.. Impact of Lygus spp. (Hemiptera: Miridae) on Damage, Yield and Quality of Lesquerella (Physaria fendleri), a Potential New Oil-Seed Crop[J]. University of Arizona,2011,104(5):1575-1583. |
APA | Naranjo, Steven E.,Ellsworth, Peter C.,&Dierig, David A..(2011).Impact of Lygus spp. (Hemiptera: Miridae) on Damage, Yield and Quality of Lesquerella (Physaria fendleri), a Potential New Oil-Seed Crop.JOURNAL OF ECONOMIC ENTOMOLOGY,104(5),1575-1583. |
MLA | Naranjo, Steven E.,et al."Impact of Lygus spp. (Hemiptera: Miridae) on Damage, Yield and Quality of Lesquerella (Physaria fendleri), a Potential New Oil-Seed Crop".JOURNAL OF ECONOMIC ENTOMOLOGY 104.5(2011):1575-1583. |
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