Journal
ENVIRONMENTAL ENTOMOLOGY
Volume 48, Issue 1, Pages 202-210Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/ee/nvy171
Keywords
asparagus miner; common asparagus beetle; biological control; lure; kairomone
Categories
Funding
- National Science Foundation Graduate Research Fellowship [DGE1424871]
- National Institute of Food and Agriculture (United States Department of Agriculture) through the North Central Region Sustainable Agriculture Research and Education (SARE) program [GNC16-225]
- Michigan Asparagus Advisory Board
Ask authors/readers for more resources
Natural enemies can be important regulators of pests in agroecosystems, and they often rely on volatile chemical cues to find hosts. Herbivore-induced plant volatiles (HIPVs) have been a focal point in many studies that seek to increase the efficacy of biological control programs by increasing recruitment and retention of natural enemies. Our research sought to explore the role of HIPVs in asparagus agroecosystems to answer the following questions: 1) What is the composition of HIPV produced by asparagus ferns following feeding by a chewing herbivore? 2) Do field deployed lures baited with synthetic asparagus HIPVs attract natural enemies? and 3) Can HIPV lures increase biological control of asparagus pests? Volatiles were field collected from the headspace of healthy asparagus ferns, mechanically damaged ferns, and ferns fed upon by asparagus beetle larvae (Crioceris asparagi L.) (Coleoptera: Chrysomelidae). We found that asparagus beetle damaged asparagus had significantly higher concentrations of (E)-alpha-ocimene, (E,E)-alpha-farnesene, and (1)-tetradecanol than healthy or mechanically damaged ferns. Field experiments demonstrated that lures baited with isolates of ocimene and farnesene attracted parasitoids without attracting pests, but had no impact on predator recruitment. Finally, we determined that overall parasitism rates were not increased by synthetic HIPV lures but found evidence that lures may increase parasitism of asparagus miner (Ophiomyia simplex Loew) (Diptera: Agromyzidae) by pteromalids.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available