Annual report of the Maine Agricultural Experiment Station . Fig. 11. (After Packard).. Fig. 12. Male. Fig. 13. Female. (Fig. 12 and 13 from Me. Ag. Exp. Sta. Bui. 161). COMBATIVE MEASURES. For the orchard or shade trees there are several practicalmeasures which have proven successful the past season in pre-venting serious injury from the saddled prominent. Spraying.—This species is susceptible to arsenical poisonsand the caterpillars readily died on apple trees which were thor-oughly sprayed. Arsenate of lead will kill these caterpillarsand should be applied as soon as they begin appreciable
Annual report of the Maine Agricultural Experiment Station . Fig. 11. (After Packard).. Fig. 12. Male. Fig. 13. Female. (Fig. 12 and 13 from Me. Ag. Exp. Sta. Bui. 161). COMBATIVE MEASURES. For the orchard or shade trees there are several practicalmeasures which have proven successful the past season in pre-venting serious injury from the saddled prominent. Spraying.—This species is susceptible to arsenical poisonsand the caterpillars readily died on apple trees which were thor-oughly sprayed. Arsenate of lead will kill these caterpillarsand should be applied as soon as they begin appreciable from the middle to the last of June would prob-ably get all these caterpillars which hatched upon the trees. Incase a migration to an orchard from an infested forest growthis feared, the orchard should be sprayed as soon as the cater-pillars begin to travel in search of fresh food; or if trees notalready attacked are banded with a sticky substance, as forcanker worms, the ascent of caterpillars up the trunk willeffectually be prevented. Jarring and banding.—The
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectagriculture, bookyear
