The first inorganic pesticide to be used commercially was -a)Bordeaux ...
Bordeaux mixture (also called Bordo Mix) is a mixture of copper(II) sulfate (CuSO4) and slaked lime (Ca(OH)2) used as a fungicide. It is used in vineyards, fruit-farms and gardens to prevent infestations of downy mildew, powdery mildew and other fungi. It is sprayed on plants as a preventative; its mode of action is ineffective after a fungus has become established. It was invented in the Bordeaux region of France in the late 19th century. If it is applied in large quantities annually for many years, the copper in the mixture eventually becomes a pollutant. So, it is the first inorganic pesticide to be used commercially compared to Burgandy mixture, DDT and 2,4-D. Thus, option A is correct.
The first inorganic pesticide to be used commercially was -a)Bordeaux ...
The first inorganic pesticide to be used commercially was Bordeaux mixture. Inorganic pesticide are compounds like sulphate, arsenate's, chlorides of lead, copper and so forth used for agriculture pest control.Bordeaux mixture is a mixture of copper, sulphate and slaked lime used as fungicides it is used in vineyards, fruit farms and gardens to prevent infestation. It is sprayed on plants as preservatives. It's mode of action is ineffective after fungus has become established. So comparing to burgandy mixture, DDT and 2-4D.Boedeaux mixture is the first inorganic pesticide to be used commercially.
So option " A " is correct answer.