Crossword-Solution: CHLORDANE 9 letters, 1 clue 🏆 scrabble score: 15

Chlordane, which has a very important use in connection with these insects in the grub stage, is not recommended above ground; it is too brief in its action.

For each 1,000 square feet I take 5 pounds of 5% chlordane and, since it tends to clog the spreader, I mix it in a cardboard drum with 5 pounds of a dry, granular material such as the activated-sludge fertilizer known as "Milorganite." The ten pounds of mixture is then spread on the 1,000 square feet, half east and west, half north and south.

ADAMS: Turf treated with chlordane or DDT is grub-proofed and is not of any use to the flying parasites as a place to lay eggs, or for bacteria to multiply.

Other new chlorinated hydrocarbons include benzene hexachloride, synthesized in 1828 and first tested against insects in France in 1941 and discovered about the same time in England; chlordane, developed in the United States a few years ago; and toxaphene.

Chlordane is usually employed at the rate of 2 to 3 pounds of 50 percent wettable powder and toxaphene at 2 to 4 pounds of 40 percent wettable powder per 100 gallons.