- Author: Cheryl A. Wilen
[From the UC Weed Science blog]
In what has been dubbed “dandelion-gate,” members of the Washington State legislature spent 20 minutes complaining about weeds on the capital's lawn. “In all the years I've been here I've never seen so many dandelions all over,” Sen. Mike Padden (R) said. “Is it your policy not to treat dandelions?” The department responsible for landscaping responded that the legislature cut its budget and now it only has 15 people covering the nearly 500 acre campus.
More and...
- Author: Belinda Jane Messenger-Sikes
- Author: Cheryl Reynolds
Summer is nearly here, and recently we've experienced warm weather following a rich rainy season. This is the perfect combination for the luscious growth we see in lawns and landscapes.
Business picks up this time of year for the many maintenance gardeners who are hired to mow lawns, clean up landscapes, or get rid of unwanted insects, diseases, or weeds. What many people may not realize is that maintenance gardeners who apply pesticides as part of their services must be certified by the California Department of Pesticide Regulation (DPR). Even if pesticides are not used often, such as a single herbicide application, a Qualified Applicator...
[From the May 2017 issue of the UC IPM Green Bulletin]
The bronze bug (Thaumastocoris peregrinus) (Fig. 1), a serious and potentially damaging, sap-sucking insect pest of eucalypts, has very recently been detected in southern California. This pest is reported to destroy extensive areas of leaf tissue, often giving it a bronze tint, turning it yellow, red, and then brown to tan. Damage from the bronze bug eventually leads to leaf loss, canopy thinning, branch die back, and even tree death. A wide host range and its ability to survive in a variety of...
/span>- Author: Igor Lacan
- Author: Cheryl A. Wilen
- Author: John A Roncoroni
[From the May 2017 issue of the UC IPM Green Bulletin]
It's among every landscape professional's worst nightmares: returning to a landscape recently treated with an herbicide to find previously healthy trees looking “strange.” These strange findings could be leaves with bleached-out veins, twisted shoots, dying twigs, or stunted new growth appearing in unusual places.
This nightmare situation occurred several years ago on coniferous trees in many Midwestern landscapes where a presumably “safe” herbicide labeled for use...
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