QUESTIONS 



107 



3. Give life history and remedial measures for San Jose" scale. What are 



methods of controlling the oyster-shell scale? 



4. Describe life history and measures of control of the woolly louse or woolly 



aphis of the apple. 



5. Give life history and remedial measures for the tent and tentless cater- 



pillars. What are the differences between these two species? 



6. Give life history and measures of control for the apple-leaf aphis. 



7. What remedial .measures are suggested for the apple-leaf hopper? 



8. Give life history of the fall web worm. 



9. Compare the spring and fall canker worms. Give difference in life history 



and remedial measures for each. 



10. Compare the red-headed and yellow-necked apple tree caterpillars. 



11. Describe and give life histories of the Cecropia moth and the American 



silkworm. 



12. Name a cut-worm which is sometimes an orchard pest, and give reasors. 



13. Give descript' n and life history of the tarnished plant bug. 



14. Describe in detail the life history and habits of the codling moth, and 



best treatment for same. 



15. Do the same regarding the plum curculio when it affects the apple. 



16. In what way is the apple maggot injurious? 



