File:A handbook of the destructive insects of Victoria, with notes on the methods to be adopted to check and extirpate them (1891) (14595669179).jpg

Identifier: handbookofdestru02vict (find matches)
Title: A handbook of the destructive insects of Victoria, with notes on the methods to be adopted to check and extirpate them
Year: 1891 (1890s)
Authors: Victoria. Dept. of Agriculture French, Charles, 1843- Tippmann Collection (North Carolina State University). NCRS
Subjects: Insect pests Insects
Publisher: Melbourne, R. S. Brain, Government Printer
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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he best planwould probably be to adopt the carbon treatment in asimilar manner as is practised in Bordeaux and other largeFrench vine-growing centres, a plate of the machine forwhich, I may again remark, is to be found at the end ofthe present part of the book. The orange aphis is one which, if promptly and per-sistently tackled, should not cause us much alarm. Thinout the branches where possible, burn up all affected ones,,and thoroughly spray the rest. Do not wait for theparasites to come around and help you, although they arevaluable auxiliaries. Keep the sprayer and scarifiergoing, and your orchard will repay you for the extratrouble taken. 76 DESTRUCTIVE INSECTS OF VICTORIA : PLATE XXV. The Case Mqth of the Orange (Metura elongata. Saunders).Fig. 1. Branch of tree, showing leaf eaten by larva. 2. Larva in case. Natural size. 3. Perfect male. Natui*al size. 4. Pupa (male). Natural size. 5. Larva taken from case. Natural size. 6. Perfect female. Natural size. 7. Eggs. Natural size.
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CJBrittlebu Plate XXV. TroeH. i CASE-MOTH OF THE ORANGE. 77 CHAPTER XXX. CASE-MOTH OF THE ORANGE. (Metura elongata. Saunders.) Order : Lepidoptera. Section : Heterocera. Family : Psychidce. This is the well-known large stick-case-moth of ourcolonists. In structure and in its habits the females ofthis group are, as Professor McCoy remarks, amongst themost abnormal and singular of all lepidopterous insects.The female (Fig. 6) is a thick, smooth, naked, fleshy,grub-like creature, totally destitute of wings, and havingonly rudimentary traces of legs, antennae, or eyes. Theseapterous (wingless) females, which state is attributed bysome to disuse, according to the above-named gentleman,never leave the case in which they dwelt whilst in thelarval state; but, after meeting the males at the loweraperture of the case, commence to bring forth the youngin myriads; these latter, escaping in crowds, let themselvesdown, each by a silk thread spun from the lower lip, untilthey reach a twig or leaf, a

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