This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 Excerpt: ... of a hopper cage (described in Bulletin 192, mentioned below). Spraying is also useful. (California Experiment Station, Bulletins 116 and 192, 1897, 1907.) Fig. 124.--Black scale on lemon. (Enlarged.) Fig. 125.--Vine hopper; the empty skin out of which it has just crept (seen on the left) is smaller than the insect. ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 Excerpt: ... of a hopper cage (described in Bulletin 192, mentioned below). Spraying is also useful. (California Experiment Station, Bulletins 116 and 192, 1897, 1907.) Fig. 124.--Black scale on lemon. (Enlarged.) Fig. 125.--Vine hopper; the empty skin out of which it has just crept (seen on the left) is smaller than the insect. (Enlarged.) FRUIT THRIPS This very tiny insect, which is only about half as large as a plant louse, spends eleven months of the year underground. It comes out when the fruit trees begin to blossom and feeds upon the flower buds. It attacks the inside of flower buds and sucks out the juices so that they do not open. It damages especially the pears and prunes. No good remedy is known. A different sort of thrips attacks onions and beans, eating the leaves. It could perhaps be checked by spraying. MITES These are very tiny creatures which have eight legs, while the true insects have only six. Erinose. When the leaves of your grapevines look very uneven and seem to be covered with little swellings, while the under side gets woolly, your vines are attacked by a small mite which causes the disease called erinose. It does not do much damage, and the sulphuring which the vines are given to check the oidium or mildew checks also the erinose. (California Experiment Station, Bulletins 136 and 192.) Red spider. The tiny red spider (figure 126) of citrus and other fruit trees causes the dropping of fruit (but not the spotting), and also injures the leaves. It feeds on the leaf by sucking out the soft fluid parts through the beak, thus causing white spots on the leaf. It lays its eggs on the leaves and also on the fruit (figure 127). Ladybirds and other insects feed upon it, Fig. 126.--Red spider of orange in feeding position, showing how it takes hold with i...
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Seller's Description:
Good. Spine, cover and edges shows shelf wear. Inside front cover shows wear. Title page shows tanning. Few pages shows light tanning. Very Clean Copy-Over 500, 000 Internet Orders Filled.
