File:A handbook of the destructive insects of Victoria - with notes on the methods to be adopted to check and extirpate them (1891) (14781799635).jpg

Identifier: handbookofdestru01fren (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: French, Charles, 1843- Victoria. Dept. of Agriculture
Subjects: Beneficial insects -- Australia Victoria Insect pests -- Australia Victoria Insects -- Australia Victoria
Publisher: Melbourne : Robt. S. Brain
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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H 2 116 DESTRUCTIVE INSECTS OF VICTORIA. the Moths, both males and females, which as a rule arenot numerous. The forcing of steam into the holes made by this andother boring insects would, I feel certain, be of greatbenefit, and as the Moth itself is not of a small size, and byits colour is somewhat conspicuous, there should not bemuch trouble in combating the ravages of this pest. Old and abandoned orchards are fertile sources ofinfection, and should be carefully watched by growers andby all interested in fruit-growing as a profitable industry. 118 DESTRUCTIVE INSECTS OF VICTORIA: Fig. PLATE XIV. Pear Phytoptus (Phytoptus pyri). 1. Pear branch, showing- injury done to leaves. Natural size. (From nature.) 2. Section of pear leaf, showing galls and insects. Magnified. (From nature.) 3. Perfect insect. Highly magnified. (From nature.) 4. Section of gall with insects. Magnified. (From nature.) 5. Gall, showing chamber from which the little insects have escaped. Magnified. (From nature.)
Text Appearing After Image:
C.BiitfleWkDJ C.FxenciL Diiezit. Piste JJV Ti-otjdel&C^ Lith. THE TEAR PHYTOPTUS. 119 CHAPTER XIX. THE PEAR PHYTOPTUS. ( Phytoptus pyri.) Order: AracJmoidea. Family: Acarince. Sub-Faraily: P/17/foptidce. Orcliarclists and others who are familiar with pear-growing will have observed the leaves of the pear tree to bepartly covered with greenish-l)rowu blister-like lookingblotches (see Plate XIV., Fig. 1), rendering the trees veryunsightly and causing them to prematurely shed theirleaves, to the undoubted detriment of both the tree andits fruit. This damage, then, is caused by a tiny insect belongingto the family phyfoptidce^ or gall Mites, a gronp of insectswhich includes also in its ranks the well-known PedSpider of our gardens and conservatories. On examining a pear leaf, as Mr. Crawford* remarks, that has been attacked some little time, a number ofbrown blister-looking spots will be seen. These are atfirst nearly round, but as they grow in size they spreadlaterally, generally tak

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