The following article is from the UCCE Tree & Vine News newsletter (Jan. 2017).
*Chuck Ingels is a Farm Advisor with the UC Cooperative Extension Capitol Corridor, Sacramento County office.
According to the 2014 USDA-NASS Organic Survey, Washington State was the largest U.S. producer of organic apples, harvesting 429 million pounds (over 90% of U.S. fresh production) from about 14,000 acres, with an estimated farm gate crop value of $210 million. In Oct. 2016, I spoke at an organic orchard floor workshop held in Wenatchee, WA, that covered organic weed and nitrogen management (view a PDF of the...
- Author: Oleg Daugovish
Yardwaste mulch applied around trees and shrubs can help conserve water, minimize infection with root rot and if applied thick enough – control weeds. It is usually very cheap or free and the biggest cost is the spreading. Yardwaste is routinely collected from most households and non-residential spaces and everything that ends up there makes a trip to mulching facility. Including weeds. A while ago we looked at survivorship of our most difficult to control weeds over time in the mulch. After grinding the mulch is piled and the piles heat up from the center to the surface. The temperature was a primary factor affecting viability of weeds in those piles, complemented by production organic acids and microbial decomposition of...
- Author: Gale Perez
John Madsen shared the following information.
AQUATIC PLANT MANAGEMENT SOCIETY, Inc.
Center for Aquatic and Invasive Plants
7922 NW 71st Street
Gainesville, FL 32653
APMS GRADUATE STUDENT RESEARCH GRANT 2017
A graduate student research grant on the biology, ecology, and management of starry stonewort...
- Author: Whitney Brim-DeForest
In the past year, the California rice industry has begun to deal with a new pest: “weedy rice”, also known as “red rice”. Weedy rice is a common weed in rice-growing regions of the world, and when infestations are high, it can significantly reduce yields. In the southern USA, losses have been as high as 60% when uncontrolled. In 2016, through the efforts and cooperation of rice growers and Pest Control Advisors, weedy rice has been identified on over 10,000 acres in Butte, Glenn, Colusa, Sutter, Yuba, Placer and Yolo counties. Although 10,000 acres may sound like a lot, it is still only a small percentage of the total rice acreage in California (about...
- Author: Angela Llaban
- Author: Jose Martinez
- Editor: Guy B Kyser
Controlling invasive aquatic plants such as waterhyacinth, South American spongeplant, and waterprimrose in the Sacramento-San Joaquin Delta is no easy task. To address these species of floating aquatic vegetation (FAV), the California Department of Parks and Recreation, Division of Boating and Waterways (DBW) implements an integrated pest management program using a combination of chemical and mechanical control methods.
Historically, herbicide treatment was the primary tool used by DBW to control FAV. Starting in 2013, mechanical harvesting of FAV was integrated into DBW's control program. By 2016, DBW was able to conduct mechanical harvesting almost continuously throughout the year in various locations of the...