New Yoke Agricultural Experiment Station. 411 



No man who stands 10 feet from a plant for fear of getting 

 the mixture on his clothes, and who only sprays one side of a 

 plant, should be employed. Neither is an awkward, stiff-wristed 

 man of any use for this work. The work requires a man who is 

 not afraid to get near enough to the plant to spray it from all 

 sides by a simple turn of the wrist. 



If a knapsack is employed for applying the resin lime mixture, 

 a strongly-made machine must be used. We have found the " Gar- 

 field " quite satisfactory for this purpose. Such frail machines 

 as the " Eclipse " knapsack sprayer have proven worthless for 

 applying this mixture. The resin lime mixture gums the valves 

 to such an extent that a frail machine is wrenched to pieces in a 

 short time. The gumming of the valves by the resin lime mix- 

 ture is the only disadvantage found in the use of the mixture, but 

 no other mixture has been found that will adhere to the smooth 

 leaves of cabbage and cauliflower, or plants related to them. 

 Soapsuds can be flocculated with lime the same as the resin mix- 

 ture, but it will not adhere as well. Where strong machines were 

 used the only drawback from gumming was the requirement of a 

 little more force in pumping, thus adding to the heaviness of the 

 work. 



DANGER FROM USE OF MIXTURE. 



The question of danger from the use of an arsenite on such 

 plants as cabbage, cauliflower and lettuce is important. It must 

 be admitted in the case of cauliflower and lettuce that there is a 

 point beyond which the use of an arsenite is dangerous. With 

 cabbage there is no danger except in cases of gross ignorance, 

 not only on the part of the grower, but also on the part of the 

 ' consumer. The consumer would have to eat the outside leaves 

 of cabbage in order to get any of the arsenite, besides the grower 

 would have to be guilty of using the arsenite after the heads were 

 completely formed in order that the consumer get the arsenite on 

 the few leaves that are left on the outside as a protection to the 

 head. Arsenites have long been used on cabbage in one form or 

 another with no known ill effects. 



