. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. 374 Insect Pests. , sometimes witli just a speck of in the middle. There may also be variation m the other parts of the legs. The wings are slightly smoky with pale costa. In the male the antennae are shorter tlian the body, but in the female they are nearly as long. There is apparently much general variation, for Cameron (1) savs "in many specimens tlie cohjur is testaceous and may have a yellowish ; The females appear td lay their eg
. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. 374 Insect Pests. , sometimes witli just a speck of in the middle. There may also be variation m the other parts of the legs. The wings are slightly smoky with pale costa. In the male the antennae are shorter tlian the body, but in the female they are nearly as long. There is apparently much general variation, for Cameron (1) savs "in many specimens tlie cohjur is testaceous and may have a yellowish ; The females appear td lay their eggs during the warmest part of the day. Tlie eggs are placed anywhere on tlie under surface of tlie leaves, pist as is done by tlie slugworm. They hatch out in aljout ci^ht days; a few under oljservation inculiated in five days. Tlie young larva_- at once commence to feed on the under epider- mis, eating tlieir way out at the surface. At first the larva' are |i a 1 e greyish - green with a reddish tinge, sometimes varying to grey, the sides pale green to white, and the last two segments are pale. When older they are green or greyisli - green with almost white sides and last two apical seg- ments; the head is variahle, but usually pale, dull, orange-bnjwn, with spots of a lighter oi-ange hue and a very prominent Idack mark at the back of the head extending forwards. Now and again in mature larvie the head is either all deep orange or all dusky black, and e\'en the )i]a(dc mark may lie alisent. The larva-, when not feeding, remain in a coiled position under the leaves. Lar\al life lasts about tliree weeks. "When mature the larva- fall til tlie ground and ^lurro^\' into the earlli. \\\ ii\"al encoon of parch- ment-like material is formed in ^\llich it changes to a pale grey pupa. Tliis cpiiescent stage lasts fnim nine to twehe days. The whole ]il'(.'-cyele may thus be eompleted in fi\e weeks. The second brdod appears alumt llie middle of dnne, and these. f, i,i:af
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectpests, bookyear
