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a large amount of seed is to be treated, 1/3 ounce of the powdered chemical
should be used for 10 gallons of solution. The powder is first dissolved in a
small amount of boiling water. Enough cold water is then added to make the 10
gallons of solution. Seed to be treated is placed in a loosely woven cloth bag,
such as cheese cloth. The bag should not be more than 1/3 full. Seed should be
soaked in the solution for 5 minutes and gently stirred during treatment to assure
good coverage. After treatment, the seed are washed for 15 minutes in running
water and immediately spread out in a thin layer to dry. Three times as much
solution should be used as seed by volume. Care should be taken not to use metal
containers as bichloride of mercury is a very corrosive chemical.

 Unfortunately disease free seed is no lasting insurance of a disease free
crop because the bacterial spot pathogen can spread from a nearby diseased plant-
ing to a healthy one. For this reason it is necessary to adhere closely to a
preventative spray program. As soon as the plants germinate they should be
sprayed on a 5-day schedule with basic copper at 2 pounds metallic per 100
gallons of water plus streptomycin at 100 parts per million. After the plants
have attained some size and additional gallonage is necessary for coverage of
the plants it may not be economically sound to continue use of streptomycin, how-
ever, regular application of copper should continue. In order to insure complete
coverage of the plants, at least 2 or 3 nozzles should be used initially per row
and increased to 5 or 6 as the plants approach maturity. At 200 to 300 pounds
pressure the speed of the sprayer should be regulated to deliver from 50-75
gallons per acre on young plants and gradually increased to 150-200 gallons per
acre on mature plants.

 This spray schedule should also control frog-eye (Cercospora) leaf spot on
pepper.
















EES 59-31
300 copies