As cherries begin to ripen on backyard fruit trees, you'll want to monitor the fruit for pests, especially an invasive species called the spotted wing drosophila (Drosophila suzukii).
The spotted wing drosophila (SWD) is a new pest to California (since 2008). It's a small fly that attacks ripening cherries, and may also attack ripening raspberry, blackberry, blueberry, and strawberry crops, especially in coastal areas. When conditions are right, the fly can also attack soft-fleshed fruit such as plums, plumcots, nectarines, and figs.
If your cherry tree has SWD, you might notice that fruit flesh has one or more small punctures or “stings” on the surface. These symptoms are evidence of the eggs laid...
You're probably familiar with lady beetles (aka lady bugs), common beneficial insect predators that prey on aphids and other soft-bodied insects. However, lady beetles are not the only beneficial predators that can be found in your garden and landscape.
Other “natural enemies” such as assassin bugs, minute pirate bugs, lacewings, predatory wasps, spiders, and predaceous ground beetles attack and kill pests. In some cases, both the adults and larvae are predators. It's important to recognize the different life stages of these beneficial predators so you know they are helping control pests and not attacking your plants.
Protect beneficials...
[From the May 2017 issue of the UC IPM Retail Newsletter]
Keeping backyard chickens is becoming increasingly popular in residential areas around California. Your store may be selling pre-made chicken coops, feed, or other accessories, or you may be getting questions about rodent pests in chicken houses.
Chicken coops are sometimes associated with mild to serious rodent infestations. Rodents, such as rats and house mice, are not only predators of chickens and eggs, they can carry and transmit many diseases to both chickens and humans. For rodents, as well as most pests in and around the home and garden,...
/span>What are those white, frothy masses you see on your rosemary, salvia, lavender, or other plants? Spittlebugs. The masses of froth can be found on plant foliage, cones and stems.
Inside the foamy mass you will find immature spittlebugs feeding on plant tissue. Adult spittlebugs (also called froghoppers) can also be found on the plant, and are ¼ of an inch long, and green or brown.
Although not aesthetically pleasing, occasional masses of spittlebug generally do not harm established woody plants.
The best way to deal with spittlebugs is to wash them off with water, ignore them, or handpick the bugs. Pesticides are not usually effective or needed and can cause harm to pollinators that often visit these...
Many retail nurseries and garden centers sell lady beetles for controlling aphids in gardens and landscapes. Gardeners often ask, “Does releasing lady beetles really work?
University of California research has demonstrated that lady beetle releases can effectively control aphids in a limited landscape or garden area if properly handled and applied in sufficient numbers. However, because of inadequate release rates or poor quality, lady beetles often fail to provide satisfactory control; other low toxicity aphid management practices such as hosing off or insecticidal soap or oil sprays may be more effective. Here are some things to consider if you decide to try lady beetle releases:
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