18 BULLETIN 592, U. S, DEPARTMENT OF AGRICULTURE. 
Special references. — Farmers' Bulletin 884, Saving Vegetable Seeds for the Home 
and Market Garden. Production of Vegetable Seeds, Bureau of Plant Industry 
Bulletin 184. Articles in the following Yearbooks: 1896, Seed Production and Seed 
Saving; 1899, Seed Selling, Seed Growing and Seed Testing; 1901, Agricultural Seeds, 
Where Grown and How Handled; 1907, Art of Seed Selection and Breeding; 1909, 
Vegetable Seed Growing as a Business. 
Lesson 9. — Improvement of Varieties. 
1. Work of seed growers and special plant breeders. 
2. Selection in connection with home-grown seed. 
3. Novelties v. proven varieties. 
4. Study of seed catalogues. 
Special reference. — Testing Commercial Varieties of Vegetables, Yearbook 1900. 
Lesson 10. — General Cultural Methods. 
1. Preparation of the seed bed. 
2. Planting methods. 
3. Conservation of moisture. 
4. Combating weeds. 
Lesson 11. — Garden Insects. 
1. Damage done by insects. 
2. Common biting insects of the garden. 
3. Common sucking insects of the garden. 
Illustrative material. — Specimens of common garden insects.. 
Lesson 12. — Control of Insect Pests. 
1. Poison sprays. 
2. Contact sprays. 
3. Control by rotation. 
4. Other means of control. 
Lesson 13. — Control of Diseases. 
1. Nature of plant diseases. 
2. Control by spraying. 
3. Control by rotation. 
4. Other means of control. 
5. Disease-resistant varieties. 
Illustrative material.— Specimens of diseases of garden crops. 
Special references.— The following Farmers' Bulletins: 232, Spraying for Cucumber 
and Melon Diseases; 488, Diseases of Cabbage and Related Crops and Their Control; 
544, Potato Tuber Diseases; 714, Sweet Potato Diseases. 
Lesson 14. — Harvesting and Marketing. . 
1. Harvesting of the green crops. 
2. Harvesting of matured products. 
3. Harvesting devices and machinery. 
4. Transportation of vegetables. 
5. Establishing a private trade. 
6. Cooperative marketing. 
Special reference.— A Successful Method of Marketing Vegetable Products, Year- 
book, 1912. 
Lesson 15. — Storing Vegetables. 
1. Keeping qualities of vegetables. 
2. Essentials of good storage. 
3. Devices for storing in the field. 
4. The storage house. 
