Backyard Orchard News
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:
It was a bad day for a butterfly. We stopped by the Ruth Risdon Storer Garden, part of the UC...
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.
Have you ever seen a bee fly, a member of the family Bombylidae? It's about the size of some bees....
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