Sentences with phrase «of insect pests»

González estimated that the rising temperature and concomitant changes in precipitation patterns could shorten the reproduction cycle of the insect pests by a third.

The excess heat in the air can be linked to increased frequency of heat waves across the globe, wider distribution of insect pests (e.g., pine beetle in the northwest U.S.), and various health - related issues such as the spread of tropical diseases further north into the U.S.

Responses of insect pests, pathogens, and invasive plant species to climate change in the forests of northeastern North America: What can we predict?

Increased weed and pest pressure associated with longer growing seasons and warmer winters will be an increasingly important challenge; there are already examples of earlier arrival and increased populations of some insect pests such as corn earworm.64 Furthermore, many of the most aggressive weeds, such as kudzu, benefit more than crop plants from higher atmospheric carbon dioxide, and become more resistant to herbicide control.72 Many weeds respond better than most cash crops to increasing carbon dioxide concentrations, particularly «invasive» weeds with the so - called C3 photosynthetic pathway, and with rapid and expansive growth patterns, including large allocations of below - ground biomass, such as roots.73 Research also suggests that glyphosate (for example, Roundup), the most widely - used herbicide in the United States, loses its efficacy on weeds grown at the increased carbon dioxide levels likely to occur in the coming decades.74 To date, all weed / crop competition studies where the photosynthetic pathway is the same for both species favor weed growth over crop growth as carbon dioxide is increased.72

Chemical signals dominate the insect world, says Berenbaum, and this research shows that «new things can be discovered about even the most dirt common of insect pests.»

They enable our crops to compete with 30,000 species of weeds, 10,000 species of insect pests and countless diseases.

Orchards with rich floral undergrowth have a lower incidence of insect pests than orchards treated with herbicides, mainly because of an increased abundance and efficiency of predators and parasitoids.

Not exact matches

Dynamic Solutions Worldwide makes the DynaTrap, a series of eco-friendly insect traps that use UV light to lure the pests and then vacuum them inside.

The fact that he also experienced storms, droughts and insect pests meant that he had no guarantee of this.

There are three major strata of tradition mingled here; no single stratum appears to have recorded all nine wonders; and some could well be duplicates - the third (P») and fourth (JP), for example, both being plagues of insects; or eighth and ninth, both being plagues of darkness.

Organic farmers also use numerous integrative pest management techniques which promote environments that support beneficial insects such as pollinators by providing them with habitat, and use farming methods such as crop rotation which provide a diversity of nutritious floral food sources to reduce the prospect of malnutrition.

Organic farmers have a very limited number of materials in their toolbox to manage pests such as insects and weeds.

Includes details and pictures of 23 beneficial insects and the nine exotic pests and diseases identified as the top risks to the Australian industry

We are part of a global project to improve cowpea production in Africa and are making progress towards incorporating «built - in» insect pest protection that could help to reduce food shortages in the region.

The incidence of rice diseases (e.g., bacterial leaf blight, leaf blast, sheath rot, and sheath blight) and damage from insect pests (e.g., rice bug, yellow stem borer) were recorded for GR2E Golden Rice and unmodified control rice grown at five locations during the 2017 boro season in Bangladesh.

California winegrowers use cover crops and compost in the vineyards to enrich healthy soils with biomass and vibrant populations of microbes and worms and to prevent erosion and attract helpful insects that prey on pests.

Observations on the occurrence of pest and beneficial insect species were also recorded during confined field tests of GR2E rice in the Philippines.

Based on these observations, there were no indications of altered disease susceptibility of GR2E rice compared to control rice, nor were there any indications that GR2E rice was a preferred host for pest insects.

Overall, there were no indications that GR2E rice was a preferred host for pest insects or that there were any detrimental impacts on the prevalence of beneficial species.

While wintering in coffee farms, Black - throated Blue Warblers consume primarily small insects, many of which are coffee pests.

Organic grape growing avoids the use of synthetic chemicals and uses natural methods like crop rotation, tillage and natural composts to maintain soil health as well as natural methods to control weeds, insects and other pests.

Since GR2E Golden Rice does not possess any introduced or altered resistance to insect pests or diseases, there are no selection pressures that could drive the evolution of resistant pest populations, and no anticipated changes in current pest control practices.

Organic farmers also rely on diverse populations of soil organisms, beneficial insects, and birds to keep pests under control.

I have noticed no bugs or slugs, or other pest insects on the leaves of my plants.

Beneficial insects to control pests and stimulate healthy plant growth, instead of harmful chemicals

«Recent studies found that scale insect populations increase on oak and maple trees in warmer urban areas, which raises the possibility that these pests may also increase with global warming,» says Dr. Elsa Youngsteadt, a research associate at NC State and lead author of a paper on the work.

As global climate change continues, scientists expect more droughts, heat stress and insect pests — creating need for new varieties of agricultural plants with diverse qualities that will let them cope and adapt to quickly changing conditions.

The report was commissioned by India environment minister Jairam Ramesh, who earlier this year had imposed an indefinite moratorium on the release of brinjal engineered to make the Bt toxin that helps the plant resist insect pests.

The initiative, called Safe Genes, comes at a time when so - called «gene drive» systems, which override the standard rules of gene inheritance and natural selection, are raising hopes among some scientists that the technology could alter or suppress populations of disease - carrying insects or other pests in as few as 20 generations.

Noting that insects have been evolving resistance to natural plant defenses for millions of years and that this year marks the 100th anniversary of the first reported case of insecticide resistance, he concludes, «Finding ways to delay resistance is a never - ending challenge with any pest management approach.»

En route we encounter several large swaths of vegetation smoldering in prescribed burns — fires set by the U.S. Fish and Wildlife Service to clear undergrowth or control insect pests.

In 2010, the environment ministry put on hold the commercial planting of GM brinjal, an eggplant variety, equipped with a bacterial gene that thwarts insect pests.

One factor is that researchers have found warmer temperatures increase the number of young produced by the gloomy scale insect — a significant tree pest — by 300 percent, which in turn leads to 200 times more adult gloomy scales on urban trees.

Mushrooms are potential miracle workers, capable of cleaning up oil spills and radioactive contamination, filtering bacteria - tainted wastewater, speeding reforestation of clear - cut woodlands, boosting agricultural yields, controlling insect pests and treating ailments ranging from cancer and bird flu to diabetes and dementia.

High temperatures are detrimental to predatory insects that aid farmers, protecting crops from pest invasions, said Bradford Hawkins, a professor with the Department of Ecology and Evolutionary Biology at the University of California, Irvine.

Sightings of the corn rootworm, a pest that feeds on corn roots, and the Japanese beetle, an insect that can destroy corn tassels, have actually decreased, he added.

Forests experience plenty of natural disturbances: fire, weather variations, competition between plant species, and attacks by insect pests and pathogens.

He explains that «This research could provide valuable insights in the way that the behaviour and life cycle of harmful insects, such as agricultural pests and disease vectors, is governed by temperature.

In the absence of these pest insects the crop has thrived in countries ranging from Nigeria to Thailand.

Escaped pets, sport fish and garden plants run amok, insects that come hidden in the foliage of imported plants, pests that are introduced to control other pests — the invaders are legion, from anywhere, going everywhere.

The Food and Drug Administration, recognizing the ubiquity of such insect pests, sets limits on acceptable levels of bugs rather than banning them completely from food.

This isn't just because there are plenty of pollinating insects, creepy crawly pest controllers and other useful helpers.

The researchers found that insect pests are part of the problem, but that heat itself plays a more significant role.

«I could come into Hawaii tomorrow with a whole bunch of plants from Southeast Asia, and as long as they didn't have any insect pests, I could bring them in,» says Charles Lamoureux, director of the Lyon Arboretum at the University of Hawaii at Manoa.

The rapid spread of engineered genes through a population may allow researchers to make mosquitoes unable to spread malaria or other diseases, to sterilize the insects, or to clear pests or invasive species out of places where they are not wanted (SN: 12/26/15, p. 6;

One general benefit of the RNAi approach, Zhang says, is that researchers can selectively target specific insect pests by targeting species - specific gene sequences; this avoids the blanket destruction of other insect species seen with many insecticides, he explains.

After testing scores of samples taken from rice fields across the state, MSU scientists found that seed treatments are effective in managing the crop's most troublesome insect pests.

The rice water weevil, such as this adult on a rice leaf, is one of the most troublesome insect pests in rice, but seed treatments have proven to be effective in controlling them.

The Colorado potato beetle costs the agricultural industry billions of dollars per year and devours so many crops around the world that the insect has been branded an «international super pest.»

They documented the pests present, the predators of pests present, the phenology of the insects, and the plant symptoms of infestation.