Claim · model-written summary
Less frequent cutting (35-d rather than 28-d) probably allowed a buildup of the Lygus bug population in alfalfa strips.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- less frequent cuttinge6
- Outcome
- buildup of the Lygus bug populatione6
- Direction
- increaseinferrede6
- Comparator
- 28-d treatmente6
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lygus bug, Lygus hesperus Knight, and beneficial insect populations ( Orius sp., Geocoris spp., and Nabis spp.) were quantified in alfalfa strips, which were interplanted within cotton fields”
e6“The less frequent cutting, in the 35-d compared with the 28-d treatment, probably also allowed for a buildup of the Lygus bug population”
Title
L. D. Godfrey; T. F. Leigh Environmental Entomology 1994. doi:10.1093/ee/23.5.1106
Other claims from this paper (9)
- Intervention effect Lygus bug densities in alfalfa strips were significantly higher in the uncut treatment than in the other treatments, peaking at 520 per 1.9 m2 in 1990.
- Intervention effect Lygus bug densities in alfalfa strips were significantly higher in the uncut treatment than in the other treatments, peaking at 350 per 1.9 m2 in 1991.
- Intervention effect Beneficial insect densities were higher in the uncut alfalfa than in the strip-cut treatments, but this did not offset the Lygus bug increase.
- Observation In the newer growth of strip-cut alfalfa, Lygus bug levels were low, averaging 41.8 per 1.9 m2.
- Observation In the older growth of the 28-d strip-cut treatment, Lygus bug levels were only slightly higher, averaging 65.3 per 1.9 m2.
- Observation Populations in the three alfalfa treatments were relatively constant throughout the season.
- Observation In the older growth of the 35-d cutting regime, Lygus bug populations averaged 103 per 1.9 m2.
- Intervention effect The uncut alfalfa treatment lacked Lygus bug egg and nymphal mortality from cutting, compared with strip-cut treatments.
- Recommendation To optimize Lygus bug management while still producing high predator densities, strip-cut alfalfa should be cut on a 28-d schedule.