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Research has shown that when insects are electrocuted, bug zappers can spread a mist containing insect parts up to about 2 metres (6 feet 7 inches) from the device. The air around the bug zapper can become contaminated by bacteria and viruses that can be inhaled by, or settle on the food of people in the immediate vicinity.
The tergites are black, without the dust spots or blue-purple sheen of other Merodon species. The thorax and abdomen are hidden by dense, long, erect hairs of variable colouration. Tibia 3 of the male has 2 spurs at the apex. [10] The larva is described and figured by Hodson (1932) [11] and it is illustrated in colour by Rotheray (1993). [12]
Use of insecticide and fungicide for crop dusting slowly spread in the Americas and, to a lesser extent, other nations in the 1930s. The name 'crop dusting' originated here, as actual dust was spread across the crops. Today, aerial applicators use liquid crop protection products in very small doses.
Aerial spraying has been controversial since the 1960s, due to environmental concerns about pesticide drift (raised for example by Rachel Carson's book Silent Spring). It is now often subject to restrictions, for example spraying pesticide is generally banned in Sweden, although exceptions can be made such as for an area plagued by mosquitoes ...
Carbaryl is often inexpensively produced by direct reaction of methyl isocyanate with 1-naphthol. [5]C 10 H 7 OH + CH 3 NCO → C 10 H 7 OC(O)NHCH 3. Alternatively, 1-naphthol can be treated with excess phosgene to produce 1-naphthyl chloroformate, which is then converted to carbaryl by reaction with methylamine. [5]
BPUs accounted for 3% of the $ 18.4 billion world insecticide market in 2018. [3] Lufenuron, was the largest selling BPU in 2016, selling for $ 112 million. [4] BPUs are active against many types of insect pests, (e.g. lepidoptera coleoptera, diptera) in agriculture, [1] [5] as well as being used against termites and animal health pests such as ...