Allium Leaf Miner Allium leaf miner (ALM) feeding/egglaying scars were detected in chives and scallions near Princeton (Mercer Co.), NJ on Friday of this week. This indicates that the second (fall) flight of these flies is now underway, and damage is occurring. Growers should consider initiating the control method of their choice at this time. Affected […]
Continue reading...April 17, 2019 Norman Lalancette
Improving Your Early Season Peach Brown Rot Control Program
Have you ever felt that you did everything right at controlling brown rot during the preharvest period, but still got a significant amount of brown rot at harvest? Your preharvest fungicide applications were at tight intervals during the roughly 21-day fruit ripening period. Rains occurred but you were protected. Even when you looked back at […]
Continue reading...April 15, 2019 Dave Schmitt
Tree Fruit IPM Report for April 15, 2019
Peach: Brown Rot: Blossom infections from the brown rot fungus can occur whenever pistils are exposed and a favorable climate exists. Infections can occur during any wetting period when temperatures are between 41 and 86 °F. However, optimum conditions for infection occur with wetting and temperatures in the mid 70’s.
Continue reading...April 15, 2019 Thierry Besancon
Optimizing preemergence weed control in established blueberry for 2019
Several long-residual herbicides with different modes of action (MOA) are labeled for established blueberry. In order to reduce the potential of selecting for herbicide-resistant weeds, it is highly recommended mixing two residual herbicides with different MOA whenever you apply preemergence herbicides. Casoron (dichlobenil) is a cellulose synthesis inhibitor recommended for fall application to control many […]
Continue reading...April 15, 2019 Matthew Elmore
Roughstalk bluegrass
Roughstalk bluegrass (Poa trivialis) is a cool-season perennial grass often considered a weed. Light green in color it is most obvious in the early spring when it grows more rapidly than other turfgrasses. As temperatures rise in the summer its growth … Read More »
Continue reading...April 10, 2019 Kris Holmstrom and Joe Ingerson-Mahar
Veg IPM Update: Allium leaf miner 04/10/19
Allium Leaf Miner Allium leaf miner (ALM) feeding was detected in one commercial planting of chives near Lawrenceville, NJ on Tuesday of this week. Degree-day accumulations at this site were 46.5, base 50 F as of Tuesday. Sticky traps at this same site yielded no flies. Additionally, trap and inspection sites at Milford (Hunterdon Co. […]
Continue reading...
