. California fruits and how to grow them. Fruit culture. How to Grow Them 391 Vine Hoppers The most notable of these because of its evil work in the central part of the State, and because the grub destroys the roots of the vine causing it to be called the "grape root worm," and the beetle riddles the leaves and young fruit. It is Adoxus vitis and a special study of it has been plants. The attack on leaves and buds causes them to wither and fall off. Indeed complete defoliation may follow their attack. When thrips infest fruit blossoms the essential parts are eaten off by the insects
. California fruits and how to grow them. Fruit culture. How to Grow Them 391 Vine Hoppers The most notable of these because of its evil work in the central part of the State, and because the grub destroys the roots of the vine causing it to be called the "grape root worm," and the beetle riddles the leaves and young fruit. It is Adoxus vitis and a special study of it has been plants. The attack on leaves and buds causes them to wither and fall off. Indeed complete defoliation may follow their attack. When thrips infest fruit blossoms the essential parts are eaten off by the insects and the attacked blossom sets no fruit. Much damage is done by this insect and thorough investi-. The tussock-moth I, made by Professor H. J. Quayle, of the gations are now under way looking to the University Experiment Station, the results development of practical means for its of which are published in Bulletin 195 control. of the station and remedies suggested. Our pictures will enable the reader to recog- nize the beetle and its work. The beetle is about one-fifth of an inch in length and is black or brown. INSECTS UPON BARK OR SURFACE OF LEAVES OR FRUIT. Leaf LicE.^—Leaves of fruit trees, especial- ly the apple and plum, are sometimes almost covered with lice or aphides of different colors, from light green to black, some in- dividuals having wings and some wingless. Available remedies for all these leaf lice are the kerosene emulsions which will be given later as summer washes for scale in- sects, with a spray nozzle which sends spray upwards, so as to reach the under sides of the leaves. Very often these pests are apparently cleared out by lady-birds and other insects which devour them. The en- graving shows the general form of the aphis tribe. Thrips.—Very minute insects infesting Vine Hoppers.—Very minute, yellowish, buds, leaves and blossoms of pears, prunes, jumping insects infesting grape-vines very cherries, peaches and many other trees and early in the seaso
Size: 2213px × 1129px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectfruitculture, bookyea
