A Course in Nature Study for Use in the Public Schools
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from ... Show synopsis 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. 1900 Excerpt: ... for a second brood. Change to pupa may not take place until spring. Spray with Bordeaux mixture. (a) Before the blossom opens. (b) After the blossoms fall. (c) A week later. 2. Plum Pests. (a) Fruit. Plum cnrculio. Observe the insect lay the egg in fruit. Jar tree and destroy affected fruit. 3. Peach Pests. (a) Trunk and roots. Peach tree borer. Dig out borers before July 13. and destroy. i. Cherry Pests, (a) Fruit. Cherry fruit fly. Lays eggs through skin of reddening cherry; maggot feeds on pulp near it. Maggot leaves fruit; goes to ground, transforms to parent fly in spring. 5. Grape Pests. (a.) Leaves and buds. Grape vine flea beetle. Small blue beetle attacking swelling buds. Destroys crop. 6. Currant. Pests. (a) Stems. Two borers, adult of one a beetle, of the other a moth. Cut out and destroy infested stalk., (b) Leaves. Imported currant worm. Green worm, larva of saw-fly. Eggs laved along veins in under side of leaves. 7. Raspberry and Blackberry Pests. (a) Canes. Raspberry cane borer. Cut and burn wilted tip of cane. (b) Leaves. Raspberry saw-fly. Eggs on leaves in spring; larva--thickly spined green worm. Pupa stage in ground.. 8. Potato Pests, (a) Leaves. Colorado potato beetle. Hibernates in ground. Five hundred to 1,000 eggs. Grows, full grown in two or three weeks. Tupate in ground. Grubs and bettles feed upon leaves.!). Totmato Pests, (a) Leaves. Tomato larva. Larva.green 0r brown in color. Pupa stage in ground. The adult, the Sphinx moth. Often attacked by Ichneumon fly, which deposits eggs under skin. Larvae feed upon caterpillar. On emerging they spin white cocoons. 10. Cabbage and Cauliflower Pests, (a) Leaves. Eggs on leaves. Caterpillar full grown in two weeks. Butterflies emerge from chrysalis in ten days. One of the best species to ob..