Weevils Wipe Out Killer Weeds In Papua New Guinea
...NG. Researchers from CSIRO Entomology used tiny weevils as biological control agents to control a massive... the release of biological control agents such as weevils dramatically reduced the areas covered by the weed. "Over the past five years, we have released ...A 300-Million-Year Old Twosome: The Cycad And Its Pollinator
...d that cycads are pollinated byspecific species of weevils ( http://www.nybg.org/events/prel_weevil.html )andbeetles and unravelled the symbiosis -- mutually beneficial relationship of twodissimilar organisms living together -- between plants and pollinators,demonstrating that the cycads' survival is conting...Chemical discovered that causes plant tumors
...e scientific classification, bruchid, to which pea weevils belong. This chemical triggers the pea pod to beg...ould have a useful role in nature in repelling pea weevils -- but there was no effect on most other parts of the same plant. Earlier researchers had identifie......ling proteins in the plant roots, preventing water weevils from eating the roots. However, Hall and his group discovered that many of the insect-killing genes are not expressed or expressed only in the early stages of the growth of the plants. These genes -- also called transgenes -- are turned off once the...Site of US Open at Bethpage is reducing pesticide use
...ing greens free from fungal diseases, cutworms and weevils ---- and safe from the pesticides used to combat t...t, the scientists were aware that annual bluegrass weevils were over-wintering in the leaf litter and pine duff on the course. During the spring warm-up, green...Science picks-leads, feeds and story seeds (January 2003)
...he plant and debris that it traps. In Brazil, tiny weevils keep giant salvinia in check, but it has no natural enemies in the United States. For information see: http://salvinia.er.usgs.gov/ or http://www.fcsc.usgs.gov/Fact_Sheets/salvinia.pdf . Karen Wood ( kwood@usgs.gov ), 703-648-4447 Sharp Upturn in...Ozone may provide environmentally safe protection for grains
... only ones we don't have control over are immature weevils since they are hidden within the kernels. Ozone, unlike chemical fumigants, doesn't penetrate into the kernel enough to kill immature insects." Currently, the researchers are studying ways to use ozone as a preventative treatment by possibly sealing ...Search beneath lawns provides insight into backyard biodiversity
...als living in their lawns, they think of grubs and weevils devouring the roots and stems of their manicured turf, but when Loren B. Byrne, graduate student in the intercollege ecology program at Penn State, thinks about what is under the lawn, he sees much smaller organisms that are beneficial for the soil a...