. Insect pests of farm, garden and orchard . it is exceedingly difficult,if not impossible, to properly cure l)adly infested leaves. Life History.—The adult is a small bug about one-eighth inchlong, with rather long yellowish-green legs. The upper surface isblack, except the front margin and a central stripe of yellow on thepro-thorax, while the under side is greenish. The flies becomenumerous enough to be injurious early in June, usually beingnoticed first in one corner of a field near where they have hiber-nated. They rarely do serious damage to the first crop, but thesecond crop and late to
. Insect pests of farm, garden and orchard . it is exceedingly difficult,if not impossible, to properly cure l)adly infested leaves. Life History.—The adult is a small bug about one-eighth inchlong, with rather long yellowish-green legs. The upper surface isblack, except the front margin and a central stripe of yellow on thepro-thorax, while the under side is greenish. The flies becomenumerous enough to be injurious early in June, usually beingnoticed first in one corner of a field near where they have hiber-nated. They rarely do serious damage to the first crop, but thesecond crop and late tobacco is sometimes entirely have also been noted in the Gulf States as injuring tomatoes. * Dicyphus minimus Uhler. Family Capsida. INSECTS INJURIOUS TO TOBACCO 227 The eggs are deposited singly in tlie tissues of the leaf and hatchin about four days. The young nymphs feed on the foliage, as dothe adults, and after moulting four times transform to adults abouteleven days later. Thus it requires but about a fortnight for the. Fig. 161.—The suck-fly (Dicyphus minimus): n, newly liatched; b, secondstage; c, nymph; d, adult; e, head and beak from side—enlarged.(After Howard, U. S. Dept. Agr.) development of a brood, so that the pest multiplies very rapidlyand in a few weeks becomes so numerous that hundreds are foundon a single leaf and serious injury is inevitable. The weather plays an important part in the control of thispest, as many of the insects become stuck to the sticky exudation 228 INSECT PESTS OF FARM, GARDEN AND ORCHARD given off by the glandular hairs of the tobacco, and if there be fre-quent rains, this is washed off and the insects develop bugs arc found in late fall until frost, but the exact number ofgenerations has not l)een determined. They evidently hibernatein or near the tobacco field. Control.—Professor A. L. Quaintance, who experimented with remedies in Florida, has found, curiously enough, that the best insecticide again
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