4.7 Article

Novel 3-D Spacer Textiles to Protect Crops from Insect Infestation and That Enhance Plant Growth

期刊

AGRICULTURE-BASEL
卷 12, 期 4, 页码 -

出版社

MDPI
DOI: 10.3390/agriculture12040498

关键词

insect control; organic farming; non-insecticidal; spacer fabric; enhanced plant growth

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资金

  1. National Institute of Food and Agriculture, U.S. Department of Agriculture of the Small Business Innovation Research Grants Program [2015-33610-23785]
  2. NC Agricultural Experiment Station
  3. NC State University

向作者/读者索取更多资源

Pesticide-free, 3-D, spacer fabrics were investigated as a potential insect barrier for organic farming. The fabrics showed excellent resistance to penetration by thrips and caterpillars, and covered cabbage plants exhibited significantly faster growth.
Pesticide-free, 3-D, spacer fabrics (Plant Armor Generation (PA Gen) 1 and 2) were investigated for proof-of-concept as an insect barrier to protect plants and improve plant agronomics for organic farming. The time to 50% penetration (TP50) for tobacco thrips, Frankliniella fusca (Hinds) adults in laboratory Petri dish bioassays was 30 and 175 min for PA Gen 1 and 2, respectively, and 12 min for the control (a commercially available, single layer-crop cover, Proteknet). PA Gen 2 was >= 90% resistant to penetration of unfed caterpillar neonates, Helicoverpa zea (Boddie), while the TP50's for Gen 1 and Proteknet were 3.1 and 2.35 h, respectively. In small cage studies, PA Gen 2 covered potted cabbage plants were 100% resistant to penetration by these insects through 10 d after which the study was ended. In small field plot studies for 3 summer months, cabbage plants grew approximately twice as fast when covered versus not covered with Gen 1 and Gen 2 without the need for insecticides or herbicides. This was not observed for the control crop cover. Martindale abrasion tests demonstrated Gen 1 and 2 were at least 6- and 1.8-fold more durable than the control crop cover used. Data are also presented on percentage light, water, air, and water vapor penetration across each textile and operational temperatures and humidity for cabbage plants covered and uncovered in small field plots.

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