Man-made pheromones are used to disrupt insect mating by creating confusion during the search for mates, or can be used to attract male insects to traps. Insect pheromones, for example, are naturally-occurring chemicals that insects use to locate mates. Biochemical pesticides may have a similar structure to, and function like, naturally occurring chemicals, and have nontoxic modes of action. The two types of biopesticides are biochemical and microbial. Are safer to humans and the environment than conventional pesticides.Have limited field persistence and a short shelf life.Suppress, rather than eliminate, a pest population.Have relatively critical application times.Have a narrow target range and a very specific mode of action.Biopesticidesīiopesticides are an important group of pesticides that can reduce pesticide risks. Be sure you use all pesticide products only when and where the label says they can be used. Be sure to carefully read the label of ANY pesticide you use and follow the instructions exactly as they are written. Also, some organic pesticides may be toxic to beneficial insects, such as honeybees, if they are combined with other materials, such as combining pyrethrins with rotenone.Īll pesticides, according to law, can only be used EXACTLY according to label directions. For instance, the organic pesticide ryania is very toxic to fish. While some organic pesticides may be nontoxic or are only slightly toxic to people, they may be very toxic to other animals. Signal words are not an indication of the potential for environmental harm. The most toxic pesticides have the signal word DANGER on their labels. Products with the signal word WARNING on the label are more toxic. Least toxic products carry the signal word CAUTION on their label. To determine the relative toxicity of any pesticide to humans, check the signal word given on the pesticide label. Organic pesticides have specific modes of action, just as do synthetic pesticides. Some organic pesticides are as toxic, or even more toxic, than many synthetic chemical pesticides. Just because a product is thought to be organic, or natural, does not mean that it is not toxic. It is important to be careful when using any pesticide, even organic or natural pesticides. Organic pesticides are largely insecticides.Įven if a product is considered to be organic, it is still a pesticide. These natural sources are usually plants, as is the case with pyrethrum (pyrethins), rotenone or ryania (botanical insecticides), or minerals, such as boric acid, cryolite, or diatomaceous earth. Organic pesticides are usually considered as those pesticides that come from natural sources. You may prefer to use a “natural” or “organic” pesticide when you need to control a pest.
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