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Tag: "bark" at biology news

Stealth Worms May Improve Insect Pest Control

... encrypted habitats such as the pockets behind the bark of trees, the juvenile nematode waits for (or sometimes actively seeks) an unsuspecting host - a grub or a larva - to jump on it and penetrate it through the insect's natural openings - mouth, anus, spiracles. Or the nematode may enter the host direc...

Nature provides inspiration for important new adhesive

...een explored to create the new adhesives from tree bark or wood decayed by brown rot fungus. Regardless of the material used to produce the adhesives, they are renewable and may reduce the need for the currently used urea-formaldehyde wood adhesives that have health concerns, and are based on increasingly...

While on trail of dioxin, scientists pinpoint cancer target of green tea

...h aches and pains no longer have to chew on willow bark to receive the benefits of the substance salicin ?they simply take an aspirin –the current research opens the door to extending the health benefits first discovered in green tea to people who never touch the beverage. Isolating the chemicals that pro...

Chemists synthesize molecule that helps body battle cancers, malaria

...ate cancer, HIV-1 and malaria. An extract from the bark of the South American tree Quillaja saponaria Molina, QS-21A is available only in small quantities. "Now that we have synthesized this remarkable molecule and confirmed its structure, we are in a position to examine how it works and investigate ways...

Beneficial Beetles Battle Pesky Saltcedar

...es that munch on saltcedar leaves, shoots and twig bark are helping stop the spread of this rugged, aggressive weed. Also known as tamarisk, saltcedar was brought into the United States in the 1800s to help control erosion. By the mid-1900s, however, saltcedar had become an out-of-control pest, crowding n...

Alien woodwasp, threat to US pine trees, found in N.Y.

...lished." Hoebeke was sifting through thousands of bark beetles caught in routine screening traps set by t... program, in search of any of 10 exotic species of bark beetles, when he stumbled across the specimen of S. noctilio . "I recognized it immediately," says ...

Researchers discover key gene involved in bark beetle pheromone production

... decade-long controversy over the process by which bark beetles make pheromones: they manufacture their ow...e Lake Tahoe basin lost 30 percent of its pines to bark beetle infestation during the 1986-1994 drought, according to Blomquist. There are several hundred ...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...heir trunks ?the fire lingered close to their thin bark long enough to damage the delicate cambium beneath...e most trees in this ecosystem never evolved thick bark to protect themselves from fire, some appear more vulnerable to fire than others, and others that ap...

Emerald Spectre haunts Ontario's ash forests

...ttle human help. Adult beetles lay eggs under tree bark and the feeding larvae kill trees by disrupting the flow of nutrients in the soft tissues under the bark. The new study funded by the Natural Sciences and Engineering Research Council of Canada (NSERC) reveals that unprecedented actions taken to sto...

Underlying cause of massive pinyon pine die-off revealed

...s under so much water stress that the attacks from bark beetles finished them off. Under such conditions, the trees cannot make enough pine sap to defend themselves against the insects. "These trees are slow-growing trees, so we aren't going to have woodlands of this type back in this area for decades," ...

Drunken elephants: The marula fruit myth

...sible for "tipsy" behavior. Elephants also eat the bark of the marula tree, which is home to a beetle pupae traditionally used to poison arrow tips. ...

Sweetgum tree could help lessen shortage of bird flu drug

... Although shikimic acid is found in the leaves and bark of the tree, it is most abundant in the fruit, Poon says. In the mature tree, the fruit emerges as a green seedpod that later dries into a brown, spiny husk, which releases an abundance of tiny, grain-like seeds. To optimize shikimic acid extraction,...

New organic substrate

...defibration. During this defibration process the bark of the pine is subjected to a washing in water at a temperature of 90-115 ºC, the resulting cellulose being practically pure, free of phytotoxic products and ready to be used in the growing of agricultural crops. ...

Traditional Chinese medicine for diabetes has scientific backing

...w treatment. Berberine is found in the roots and bark of a number of plants used for medicinal purposes including woundhealing and treatment of diarrhoea. It has also been documented in Chinese literature as having a glucose lowering effect when administered to people with diabetes; yet, until now, its ...

Natural pine bark extract relieves muscle cramp and pain in athletes and diabetics

...Angiology shows that supplementation with the pine bark extract Pycnogenol® (pic-noj-en-all) improves blood flow to the muscles which speeds recovery after physical exercise. The study of 113 participants demonstrated that Pycnogenol significantly reduces muscular pain and cramps in athletes and healthy, ...

Study shows pine bark naturally decreases severe chronic venous insufficiency

...noj-en-all), an antioxidant plant extract from the bark of the French maritime pine tree. Over 35 years of research on Pycnogenol® demonstrate the antioxidant's ability to improve blood flow and strengthen venous walls. Published results from this study showed Pycnogenol® to be more effective in reducin...

Mayo Clinic collaboration mining of ancient herbal text leads to potential new anti-bacterial drug

...motherapeutic agent Taxol TM was derived from the bark of the Pacific yew tree. So it's not so far-fetched to think that the contributions of an ancient text and insights from traditional medicine really may impact modern public health," explains Brent Bauer, M.D., director of the Mayo Clinic Complementa...

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