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Residues Of Spray*' v: W
On fruits Studied Ir ' :
DDT Applied to peaches in the fourth or fifth cover spray two to, three weeks before harvest, may still be present on the peaches “in alarming amounts” at harvest time. , ■.
Dr. L. L. Davis, of the Virginia Experiment Station, says however, that the DDT is removed when the peaches are peeled.
On the other hand, BHC applied in the first cover spray, or in later sprays, is not removed when the peaches are peeled, and will likely cause a musty, off-flavor.
Applications of BHC in earlier sprays rarely persist until harvest.
Standard Materials Best *
For Insect Control
„ A warning to home gardeners against haphazardly “trying out” some of the newer insecticides has been given by J. O. Rowell, insect control specialist at VPI.
Rowell says the home gardener should be “extremely cautious” in selecting insecticides. It usually is wise, he says, to use the standard materials. There is danger of poisonous residues on Vegetables when materials which have not then thoroughly field-tested are used.
He says that if home gardeners try some of the newer insecticides, they should follow very closely the directions of the manufacturer.
Rotenone preparations are still .standard foe the control, of moat of the common pests of the home garden. Use a ready-prepared dust mixture containing at least 0.75 percent of rotenone; or, if you prefer a spray, mix 3 level tablespoonfuls of 5 percent rotenone powder in one. gallon of water. Rotenone leaves no poisonous residue.
Sabadilla dust is recommended: for the control of the harlequin
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