. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. Insects, etc., Injurious to lite Gooseberry. 281 their increase, tlioir equally sudden disappearance, even in warm weather, are subjects ahout whicli much further investigation is necessary. Pi;i';VENTT()X AND The recognised treatment fur tlie lied Spiders has l)eeu some form of sulplurr wash. Liver of sulphur has proved tlie most convenient form. It has, liowever, been found of no avail in certain years. For instance, in 1907, little good was done l
. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. Insects, etc., Injurious to lite Gooseberry. 281 their increase, tlioir equally sudden disappearance, even in warm weather, are subjects ahout whicli much further investigation is necessary. Pi;i';VENTT()X AND The recognised treatment fur tlie lied Spiders has l)eeu some form of sulplurr wash. Liver of sulphur has proved tlie most convenient form. It has, liowever, been found of no avail in certain years. For instance, in 1907, little good was done liy spraying with this acaricide. The other aearicide found to work Avhen sulphur fails is paratlin emulsion, and the best results liave been oljtained with paraffin jelly. ('onsiderable success has also attended the use of nicotine washes, which I found by far the most successfTil of all in 1907. The question of preventing the attack is one vdiich growers naturally are most concerned with. ATe know that the immature acari shelter i n t h e crevices, etc., of tlie wood in Feb- ruary and March, fi.!, l!(;n(iyEIil'.l;l;V KEI' ^I-IMIU and at this time , â ?;'"",''â i^ a heavy spraying would be sure to Icill very many, ^Ir. John Riley of Putley Court, Ledbury, wrote rne in 1902 that he had found great lieuefit from spraving with caustic alkali wash, and it is quite possilde that this treatment in late winter kills the young acari. Washing, in any case, in late February earniot fail to kill large numbers, and then fairly strong paraffiu emulsion may fie used ; up to as mud I as five gallons of paraffin to 100 gallons of Avash has lieen found to do no harm. AVhere attack only makes itself notice- able in Jpril or May then Ave must spray vith either the Iner of sulpliur or the paratlin jelly, and it mny be pointed out that to be ot. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration an
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectpests, bookyear
