. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Rural School Leaflet 905 3. Do all of the plant lice have wings? How many wings do some of the plant lice have? Draw a wing of an aphid. 4. See if the tiny beak of an aphid can be found. It is carried on the underside of the body between the bases of the legs. How long is the beak? Note the beaks of the lice sticking into the cabbage leaf. 5. Examin
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Rural School Leaflet 905 3. Do all of the plant lice have wings? How many wings do some of the plant lice have? Draw a wing of an aphid. 4. See if the tiny beak of an aphid can be found. It is carried on the underside of the body between the bases of the legs. How long is the beak? Note the beaks of the lice sticking into the cabbage leaf. 5. Examine cabbage leaves in summer or in fall for the swollen bodies of aphids with round doors cut in their backs. These have been killed by tiny parasites. Can the tiny black fly-like parasites be seen flying about the cabbages? 6. See whether ladybugs can be found among the lice. Try to find a syrphus fly and see whether the white egg can be located. The syrphus flies will be flying about it in the cabbage field and may look to you like Fig. 7.—Aphids thai have been killed by parasites PHOTO BY SLINGERLAND Editor's Note.— As this leaflet goes to press there has come to our atten- tion an interesting fact in connection with the insect work. It appears that during the past spring and summer the apple-tree tent-caterpillars have been unusually numerous. A great many letters that we received from boys and girls mentioned this fact, and on consulting the Depart- ment of Entomology we were told that this pest is especially prevalent this year. In consequence, and unless the parasites that prey upon the insect have been numerous enough to hold it in check, there should be an excellent opportimity to find and study the eggs of the tent caterpillar this fall and winter. Have the children gather and keep them, as is suggested on page 95. The study of the methods of controlling the caterpillars will not only have an added interest but a direct practical appHcation next spring. The q
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