Crossword clues for pesticide
Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
1939, a hybrid coined from English pest + Latinate -cide.
n. Anything, especially a synthetic substance but also any substance (e.g. sulfur), or virus, bacterium, or other organism, which kills or suppresses the activities of pests.
n. a chemical used to kill pests (as rodents or insects)
Pesticides are substances meant for attracting, seducing, and then destroying any pest. They are a class of biocide. The most common use of pesticides is as plant protection products (also known as crop protection products), which in general protect plants from damaging influences such as weeds, fungi, or insects. This use of pesticides is so common that the term pesticide is often treated as synonymous with plant protection product, although it is in fact a broader term, as pesticides are also used for non-agricultural purposes. The term pesticide includes all of the following: herbicide, insecticide, insect growth regulator, nematicide, termiticide, molluscicide, piscicide, avicide, rodenticide, predacide, bactericide, insect repellent, animal repellent, antimicrobial, fungicide, disinfectant ( antimicrobial), and sanitizer.
In general, a pesticide is a chemical or biological agent (such as a virus, bacterium, antimicrobial, or disinfectant) that deters, incapacitates, kills, or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, mollusks, birds, mammals, fish, nematodes ( roundworms), and microbes that destroy property, cause nuisance, or spread disease, or are disease vectors. Although pesticides have benefits, some also have drawbacks, such as potential toxicity to humans and other species. According to the Stockholm Convention on Persistent Organic Pollutants, 9 of the 12 most dangerous and persistent organic chemicals are organochlorine pesticides.
Usage examples of "pesticide".
There would have been pesticides such as rat poison, wasp-killer and a fumigatory for trees and fruit.
As the Center for Macromolecular Research, its mission was to investigate pheromonic phenomena among plants and insects, to isolate pheromones from the various species, to elaborate strategies for the use of pheromones in combating insect pests, and to synthesize these pheromones for use as pesticides in commercial quantities.
Once thriving in wetlands near the Kennedy Space Center, the dusky was done in by overdevelopment and pesticides.
Recently, their numbers had been dwindlingthey were victims of overfishing and pollution from PCBs, pesticides and phosphates from agricultural runoff and many of the survivors were manifesting tumors, ulcers and even bizarre genetic mutations.
We think this is a needless waste of life, and most pests can be defeated - without polluting the house with pesticides.
The first article was about bats that had recently been lured from caves to farms in Colorado in the spring and so far ate nineteen million rootworms, saving a fortune in pesticides.
Some biologists believe additional harm came from fertilizers and pesticides which flushed through the Everglades into the bay.
The pest evolves to tolerate the pesticide, so the plant evolves a stronger pesticide.
Earthworms cannot tolerate chemical fertilizers and are killed by pesticides including slug and snail poison.
More and more, farmers and gardeners are turning to biological control, which offers a true alternative to pesticides.
The pesticide was leaching into the water and poisoning the food chain, and the fish the ospreys were eating were destroying their eggs.
Santa Barbara Farmers Market who prove, week after week and season after season, that growing food without pesticides is entirely feasible and wonderfully delicious.
We opted for the neutron bomb of pesticides and thought we were winning the war.
Although TV commercials make pesticides look perfectly harmless, safety is one of the great fallacies of these chemicals.
According to a US National Academy of Science report, Regulating Pesticides in Food: The Delaney Paradox, 60 per cent of all Pesticides are either known or thought to cause cancer.