. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. 158 Insect Pests. As much as seven days' difference was noticed at one place by Air. Farley (at L'iuvin); those on the Pdenheim Orange hatched on the ovd of April, on the Wellicigton not until the lOtli of April, and it was particularly noticed that they hatched first on the Eck- linville, one of the earliest of apples. Xot many miles away at Eardiston they did not commence to appear until the 12th. In Kent they have been found to vary in incubation lietween
. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. 158 Insect Pests. As much as seven days' difference was noticed at one place by Air. Farley (at L'iuvin); those on the Pdenheim Orange hatched on the ovd of April, on the Wellicigton not until the lOtli of April, and it was particularly noticed that they hatched first on the Eck- linville, one of the earliest of apples. Xot many miles away at Eardiston they did not commence to appear until the 12th. In Kent they have been found to vary in incubation lietween the 24th of llarcli and the 27th of April. Schmidberger records them as hatching in Germany on the -jth of April, simultaneously with the bursting of the leaves. The small larvai coming from the ova at once ascend to the buds, and if they are not suffi- ciently open they may be seen seated on the l^uds waiting to gain entrance (Fig. 1M3). At first tlie larvfe are yellow to dirty yellow witli brown markings, briglit red eyes, brown feet, and about the size iif a pin- point; tlieir form is seen in the photograph (Fig. 12'.:i). They are Cjuite flat, and soon work their way into the folds of the buds and at once commence to feed. Sometimes these little larvai are quite green, at others quite dark in colour. Schmidberger found that the larva:' cast their skin on the second day after birth, and soon after this that characteristic ,ulol)ule, seen on tlieliudsand open trusses, makes its appearance from the larval body, and tlien tlie white thread appears by which the oily globule is attached. Another moult takes place in a few days, and then tlie larva not only is provided witli the tliread and globule but also with a number of ^^•hite waxy threads which partly cover its body. The first change I liave found may take place ten days after liatcliing. Tntil recently the first moult oliserved b)' Schmidlierger was not seen. 1)1 no case have I been able to detect moulting as soon as Siln
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectpests, bookyear
