Latest Whitefly Stories

DAVIS, Calif., Oct. 4, 2012 /PRNewswire/ -- Marrone Bio Innovations, Inc., a leading global provider of natural pest management products for crop protection, announced today that its Grandevo(®) bioinsecticide has received California state registration. Grandevo is now approved for use on a variety of crops including lettuce, peppers, tomatoes, citrus, strawberries, grapes and almonds and can be used in field and greenhouse applications. The first new broad-spectrum microbial...

White flies can be killed with a non-toxic, environmentally friendly powder that is safe for plants and animals, and safe for people, making it far superior to older chemical pesticides that no longer work, the report says. (PRWEB) April 12, 2012 Planet Amazing has a new report that explains how white flies can be eliminated using non-toxic treatments. According to Justin Douglas of Planet Amazing, white fly treatment is a big concern for people with gardens, tomatoes, flower beds and...

U.S. Department of Agriculture (USDA) scientists are showing Arizona cotton growers how to reduce their dependence on broad-spectrum insecticides by controlling sweetpotato whiteflies with greener alternatives. Some Arizona growers continue to combat whiteflies with broad-spectrum insecticides that wipe out a number of insects, despite the availability of sprays that specifically target whiteflies. Steve Naranjo, a scientist with USDA's Agricultural Research Service (ARS), and Peter...

Fluorescent, metal-halide lights tested for effects on sweet potato whitefly resistanceIn horticultural production, growers often depend on systems that use artificial light to produce high-quality transplants. Although the systems are efficient, fluorescent lamps can produce plants with shorter shoots than those grown under natural light. Studies have indicated that this reduced shoot elongation is due to the high red:far red ratio of typical commercial fluorescent lamps, which emit little...

In a case of rapid evolution, bacteria have been found to give whiteflies - crop-damaging insects of global importance - an edge over their uninfected peers, new research from the University of Arizona suggestsIn just six years, bacteria in the genus Rickettsia spread through a population of the sweet potato whitefly (Bemisia tabaci), an invasive pest of global importance. Infected insects lay more eggs, develop faster and are more likely to survive to adulthood compared to their uninfected...

U.S. Department of Agriculture (USDA) scientists are working to give melon growers some relief from cucurbit yellow stunting disorder virus, or CYSDV.In 2006, Agricultural Research Service (ARS) plant pathologist Bill Wintermantel with the U.S. Agricultural Research Station in Salinas, Calif., and university colleagues identified the plant disease that growers in California's Imperial Valley and nearby Yuma, Ariz., noticed was spreading through their cucurbit fields. Cucurbit crops affected...

Researchers seek disease-resistant cultivars to sustain watermelon crop productionWatermelon vine decline (WVD) is a new and emerging disease that has created devastating economic losses for watermelon producers in Florida. Caused by the whitefly-transmitted squash vein yellowing virus (SqVYV), the disease created monetary losses estimated at $60 to $70 million in Florida during the 2004 growing season. The virus has become endemic in Florida and has appeared to varying degrees every season...

PRESTON, England, June 1 /PRNewswire-FirstCall/ -- Plant Impact (AIM: PIM), a developer of technologies that improve crop productivity, is pleased to announce that on May 29 2009 it entered into a significant exclusive licence agreement with Arysta LifeScience Corporation ("Arysta") for the sale of Plant Impact's flagship BugOil(R) product ("Licence Agreement"). Highlights: - Exclusive worldwide license in relation to the BugOil(R) product granted to Arysta, a global...

By Adlam, John Whitefly With predators, add Majestik, Nemolt, SB Plant Invigorator and Mycotal into your integrated pest management programme. Mycotal is a useful control product especially in humidity levels above 80 per cent under protection. If predators are not used, apply Gazelle, Oberon, Toppel 10, Decis or Gyro. Spraying three times at five-day intervals to ensure all subsequent generations are controlled gives the best adult control programmes. Exempter or lmidasect 5GR granules in...

By Sid Mullis Today I want to discuss a couple of problems you may be experiencing in your landscape. Sooty mold can be bad this time of year. The black, sooty fungus can be on a variety of ornamental plants such as crape myrtles and gardenias. This unsightly condition is caused by a fungus that does not actually attack the plant but damages it by covering the foliage and thus reducing its absorption of sunlight. Instead of obtaining food from a host plant, as do most funguses, sooty...