. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. grountl form lliat causes so iiincli ilaiuage to the ajiple orchards in tlie southern half of the State, and to apple nursery stock throui^lmut the State, and further he says that 95 per cent, of the cases of so- called "root-rot" is in reality the result of the attack of A\"oolly Aphis. In Britain in f894 I undoubtedly found this aphis on the roots of apple trees at Shalford, in Surrey, the trees dying under the attack, and again at Alljury in the f
. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. grountl form lliat causes so iiincli ilaiuage to the ajiple orchards in tlie southern half of the State, and to apple nursery stock throui^lmut the State, and further he says that 95 per cent, of the cases of so- called "root-rot" is in reality the result of the attack of A\"oolly Aphis. In Britain in f894 I undoubtedly found this aphis on the roots of apple trees at Shalford, in Surrey, the trees dying under the attack, and again at Alljury in the fcillowing year. The attack was looked upon as abnormal, aud lor some years all cases that came uudiu' my notice were paid little attention to. This was due entirely to the hict that in some ]ireparati(ms maile from material sent me from I'addock Wood, in Kent, f(ii/ii:iis «-as alone prescnt( 2 ). Shortly aftei', ('onuold I'oiiud the galls on the roots, and tlie matter \\' placed fieyonil doubt (), and the statement concermn'j; S. fulliriis wds seen to be erroneous as fax as tlu_>. gcrnaal attack of Woolly Bliglit concei'us tlie apple. The cases sent in were from gardens with currants, lettuce, etc., growing beu(.'ath the trees; on re-examining the slides, I hud I bin' are S. foiJieiif:,' doulitless by the senders, 0A\ung to their jno- ducing white atooI, lo lie the sami' as the specimens actuall\" lai the apple roots. During the past ti\-e years \'cry nmny cases of the ground form have Ijeen examined, and many reported to me by growers. Mr. Wood of Crockenhall (4) has been the hrst to recognise this fact in its practical importance ; having lifted no less than -1:0,0()0 voung stock, more or less infested «-ith this pest, he treated it with the "gas treatment," and cleared the pest by such means. * This is now known to bo the same as the Ehu Leaf AVooUy Aphis (Scliizoticiini, i(liiii).. I /•'. liilcii:/,',:. <;:
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectpests, bookyear
