☠️In the late 1800s inorganic pesticides were used extensively to control pests in agriculture

In the late 1800s inorganic pesticides were used extensively to control pests in agriculture. These natural chemicals, including arsenic (As), copper (Cu), lead (Pb), and sulfur (S), were mixed in varying formulations and were quite effective in controlling pests. Newly emerging pests and growing labor costs led to increased pesticide use by growers.
Lead arsenate (PbHAsO4) was first used as an insecticidal spray in 1892 against the gypsy moth, Lymantria dispar (Linnaeus), in Massachusetts.