Show the grape leaf hopper life history methods of control information taken from sanderson on insect pests by dav smith bupt southern experiment farm due to the numerous inquiries in regards to the grape hoppers life history and methods of its control it thought advisable to place an article in the paper for publication tor the benefit lene fit of who do not understand under how it borki on the planta and for the proper methods f its control where eer the grape is grown in U b and canidi the will e found more or less infested with these small kar hoppers jhc thc feed bred on tha under surf ice of th leaves during the season then w late euin the ine will be covered with taw hoppers the WIT w done by li suck afi out the juiel of the through their tube like mouth parts A small white spot around the feeding punctilio due to the loss of chlorophyll in alio jeff aid when the punctures kiive ix come so numerous the leaf 1 is a appearance As djury the leaf yellows finally dries ap and falls of on the ground where this condition becomes general the injury reduces the quantity aa well as the duality of the fruit ains pest is an insidious one as it is not usually noticed until it becomes verv abundant in late summer by which atme most of ohp injury has been done and is too late to prevent it thua for the aboe reason its control has generally been neglected thus the consequent loss the cause of which lias been often unsuspected life kistoo thi adult hoppers hibernate over under leaves grass or rubbish in or near the vineyard along dikchis and fences etc in early sanni chev come out and feed on what ever cuccu lent foliage that may be available by the time the grape foliage has appeared they have mostly emerged and infest the vineyards the hibernating berna ting hoppers feed and breed on the lower leaves and disappear after the arst boung become adults A few weeks later the fern lies commence laying eggs and which continue for about sixty GO days the eggs being laid just beneath the surface of the leaf in groups from b to 9 ome throes singly the eggs hatch in 9 to 14 dava the soung nymphs feed the same at arst on the loner leaves but soon they spread later to all parts of alie plant control by cleaning up all foreign leaves and trash in the vineyard during the winter or plowing it under in early spring will reduce the number of hibernating hoppers and it has ben observed that aliey are much less in vini ards where clean culture is practiced the burning over of adjacent adia cent ditches fences etc where weeds have accumulated this ill bo found beneficial where it is practicable then in addition to the above spraying is extensively for the killing of the boune hoppers the follow ing gives two different kinds of spray which may be used to good advantage no 1 whale oil soap 1 ib to 10 gals 10 kerosene emulsion no 2 thi is best and most economical pay to use black leaf 40 pint to gallons of water this makes a de lution of 1 to 1600 these should be applied on alio underside of the grapes leaves a mist nozzle should be one is usually suf |