 Retrievable AgBio Dispensers |
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Cranberry Weevil (CBW): Over the past 7 days about 50% of beating tray samples have been positive for CBW, and about 6% of samples were at or above the threshold of 5 adults/bush. The highest level seen was 8 weevils per bush. These numbers suggest that CBW is still present but it is now rare to see levels at threshold. Two weeks ago 21% of samples were above threshold compared to 6% over the past 7 days. This decline is mostly due to the advance of flower bud development. No treatments are permitted while bees are in the field.
Plum Curculio (PC): Over the last 7 days, 3% of beating tray samples were positive for PC adults. This is a decline from the previous week most likely due to cooler temps and recent cloudy conditions. We expect to see more adults in our samples as we get further into bloom and fruit set.
Leps (Leafrollers and Spanworms): Adult redbanded leafrollers are flying and laying eggs, and larvae should be emerging over the next week to 10 days. No other worms or leafroller larvae have been seen this past week.
Oriental Beetle Mating Disruption
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Retrievable AgBio Dispensers |
As an alternative to insecticides, we recommend the use of mating disruption for oriental beetle control. Dispensers (see picture), containing the oriental beetle sex pheromone, are now available to growers.These dispensers are being sold by AgBio:
Jan Meneley, Ph.D. To use, simply attach the dispensers to a lower blueberry branch at a density of 20-40 dispensers per acre in a grid pattern, depending on the size of the area to be treated. Please see label for information on restrictions, spacing, timing, etc. Below are instructions on how to space the disruptors through blueberry fields. The price of each dispenser is $2.45 or $61.25 for a package of 25. |
