First Annual Report on the Injurious and Other Insects of the State of New York
Excerpt from First Annual Report on the Injurious and Other Insects of the State of New York
Their recent discovery an evidence of progress in economic investiga tions, 25. Discovery of the insecticidal properties of Paris green, 25. Use of Pyrethrum extended from household pests to field and garden in sects, 25. First introduction of London purple, 25. Its subsequent use, 25. Employment of oils for destroying insect life, 25.
Related Courses
Save this book
Save
OpenCourser helps millions of learners each year. People visit us to learn workspace skills, ace their exams, and nurture their curiosity.
Our extensive catalog contains over 50,000 courses and twice as many books. Browse by search, by topic, or even by career interests. We'll match you to the right resources quickly.
Find this site helpful? Tell a friend about us.
We're supported by our community of learners. When you purchase or subscribe to courses and programs or purchase books, we may earn a commission from our partners.
Your purchases help us maintain our catalog and keep our servers humming without ads.
Thank you for supporting OpenCourser.
