Steferud alfred (21 résultats)

Hardcover. Etat : New. Contents Introduction. Grasses and legumes 1. The many ailments of clover. 2. Sources of healthier alfalfa. 3. Bacteria fungi and viruses on soybeans. 4. Legumes in the south. 5. Leaf diseases of range grasses. 6. Leaf diseases of grasses in the south. 7. The northern forage grasses. 8. Root and crown rots…

Hardcover. Etat : As New. Contents Introduction. 1. Field diseases of beans and lima beans/W.J. Zaumeyer and H. Rex Thomas. 2. Root rots wilts and blights of peas/W.T. Schroeder. 3. Blights and other ills of celery/A.G. Newhall. 4. The important diseases of Lettuce/Guy Weston Bohn. 5. Cauliflower cabbage and others/J.C. Walker.…

Hardcover. Etat : As New. Contents Introduction. Cotton 1. Fusarium and Nematodes on cotton/Albert L. Smith. 2. The rot that attacks 2 000 species/Lester M. Blank. 3. Verticillium Wilt of Cotton/J.T. Presley. 4. Anthracnose and some blights/Albert L. Smith. 5. Bacteria and fungi on seedlings/David C. Neal. 6. The leaf spots of c…

Hardcover. Etat : As New. Contents Introduction. 1. Scab of apples. 2. Blotch of apples. 3. Bitter rot of apples. 4. Rust diseases of apple. 5. Sooty blotch and fly speck. 6. Powdery mildew on apples. 7. Stony pit of pears. 8. Scab on the pear. 9. Fire blight of pears in California. 10. Phony peach and peach mosaic. 11. Brown ro…