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At the same time that DDT was hailed as part of the "world of tomorrow", concerns were expressed about its potential to kill harmless and beneficial insects (particularly pollinators), birds, fish, and eventually humans. The issue of toxicity was complicated, partly because DDT's effects varied from species to species, and partly because ...
Pyrethrum rapidly knocks down flying insects but has negligible persistence — which is good for the environment but gives poor efficacy when applied in the field. Pyrethroids are essentially chemically stabilized forms of natural pyrethrum and belong to IRAC MoA group 3 (they interfere with sodium transport in insect nerve cells). [29]
Methoxychlor was used to protect crops, ornamentals, livestock, and pets against fleas, mosquitoes, cockroaches, and other insects. It was intended to be a replacement for DDT, but has since been banned for use as a pesticide based on its acute toxicity, bioaccumulation, and endocrine disruption activity.
Eufriesea purpurata is a species of eusocial orchid bee common in northeastern South America, particularly in the Amazon basin. [1] [2] It is an important pollinator of various wild plants, and it is noted for its attraction to various synthetic compounds used by humans, including some insecticides.
Cyhalothrin (ISO common name [3]) is an organic compound that, in specific isomeric forms, is used as a pesticide. [4] It is a pyrethroid, a class of synthetic insecticides that mimic the structure and properties of the naturally occurring insecticide pyrethrin which is present in the flowers of Chrysanthemum cinerariifolium.
The bugs lay eggs (which resemble a small, gray waxy mass) in sheltered areas in October through December. They start hatching in April and grow through multiple life stages until hitting ...
Insecticides are pesticides used to kill insects. [1] They include ovicides and larvicides used against insect eggs and larvae , respectively. The major use of insecticides is in agriculture , but they are also used in home and garden settings, industrial buildings, for vector control , and control of insect parasites of animals and humans.
Aside from the gratification of concocting DIY bug repellent, there's the benefit of its chemical-free composition. Ingredients needed for a bug-repellent lotion bar include coconut oil; shea ...