Web25 aug. 2024 · The province’s website put that old threshold at 10 to 15 Lygus bugs per 10 sweeps. The province had previously operated under a series of chart values, which … Web1 apr. 2024 · The original economic threshold for lygus bug in canola (developed in 1998) was calculated to be 1.5 lygus per sweep at the early pod stage. This threshold value is …
Insect Management in ThryvOn Cotton NC State Extension
Web30 ian. 2024 · According to Gabert, advisors in the Black soil zones tend to increase the threshold numbers before advising growers to spray. “The charts end somewhere in the … WebAccumulate degree-days for lygus bug using a lower threshold of 54°F. There are two primary periods when lygus migrate from weeds into strawberries. Use degree-days to … gsm interception
Lygus Bugs: Various Species Monitoring Protocol in Canola
Web20 mai 2014 · A higher number of lygus bugs were seen in the organic field than in the conventional field throughout the observation period. While the older nymphs and adults stayed at or below the treatment threshold, younger nymphs were consistently above the threshold (2.5 to 4 per 20 plants) in the conventional field. Web1 mar. 2024 · Natural enemies are conserved through implementation of well-designed sampling and threshold systems that guide the use of selective insecticides for control of our two key pests, whitefly, Bemisia argentifolii Bellows and Perring (=B. tabaci MEAM1), and Lygus bug, primarily Lygus hesperus Knight (Ellsworth et al., 1996, Ellsworth et al., … Web16 iul. 2024 · After the third week of squaring, the economic threshold is two lygus bug adults or nymphs per 3 feet of row with less than acceptable fruit retention. After peak … gsm intercom south africa