California’s Department of Food and Agriculture (CDFA) establishing a quarantine area around the Asian citrus psyllid (ACP) detection sites in Tulare County. It is estimated that there are 11 packing houses and 21,520 acres of commercial citrus that fall within the quarantine area, which is approximately a five mile radius around the detection sites.
All fruit leaving the quarantine area must be cleaned of leaves and stems before it is moved from the quarantine area. At the present time, groves cannot be treated with pesticides as an alternative to cleaning. CDFA has requested approval from USDA’s Animal and Plant Health Inspection Service (APHIS) to implement this option, but APHIS has not approved it as of today. Compliance agreements are required for growers, haulers and packers if fruit is moved from the quarantine area. Parties should contact CDFA’s ACP Exclusion Office in Visalia at (559) 636-7410 for additional information about compliance agreements.
This information is in from Tulare County:
The California Department of Food and Agriculture (CDFA) announced yesterday that six adult Asian citrus psyllids (ACP) were found in three separate Glassy-winged sharpshooter traps in commercial citrus groves in southwest Porterville. The traps were set on June 11 and serviced on June 26. CDFA and Tulare County are establishing an eight square mile intensive trapping zone around the detections to determine if there may be other ACP in the vicinity.
CDFA, USDA/APHIS and County of Tulare will be meeting to determine the appropriate course of action and whether to impose a quarantine zone or other regulatory measures. CDFA will meet Monday (July 15) with the Executive Committee of the Citrus Pest and Disease Management Committee regarding its plans for addressing the infestation.
More information will be provided as it becomes available.
The Citrus Pest Management Guidelines have been updated —
Significant changes to the management recommendations for Asian citrus psyllid, Fuller rose beetle, Diaprepes root weevil and bean thrips were made:
- Author: Tunyalee Martin
- Contributor: Elizabeth Grafton-Cardwell
It’s that time of year again when hot weather fuels the creation of ozone, or smog. Some pesticides emit volatile organic compounds (VOCs) that contribute to ozone formation. Using pesticides that release VOCs may be restricted in certain California locations between May 1 and October 31.
If you plan to apply a pesticide, use the Department of Pesticide Regulation’s VOC calculators to determine emissions from fumigant and nonfumigant pesticides. You can get to the calculation site by going to the UC IPM Pest Management Guidelines: Citrus, click on a pest link and scroll down to the treatments. Click on the Air Quality button at the top of the treatment table.
Simple steps can minimize the release of VOCs into the air:
- Use pesticides only when necessary.
- Decrease the amount of pesticide applied if appropriate.
- Choose low-emission management methods.
- Avoid emulsifiable concentrate (EC) formulations and fumigants.
Ozone, or smog, is caused by mixing VOCs, nitrogen oxide, and sunshine. High levels of ozone can harm people and crops. Regions in California that do not meet federal or state air quality standards for ozone, called nonattainment areas, may restrict the use of pesticides that release VOCs.
Brigade WSB insecticide applied to skirt-pruned citrus trees is very important for preventing Fuller rose beetles from climbing the trunks and laying eggs on the fruit. FMC updated their 2ee trunk treatment recommendation to improve the explanation of how to properly apply the chemical to the trunk. Using the least amount of water possible provides more concentrated and longer lasting protection. However, concentration needs to be balanced with sprayability and avoiding contact with fruit. http://www.fmccrop.com/grower/Products/Labels-MSDS.aspx