. Fig. 34. Gummosis of the cucumber caused by Cladosporium cucumerinum : (a) Leaf lesions, (6) fruit lesions, (c) hypha5 and spores, {d) spores. bad cases spraying with hver of sulphur and flour paste is recommended, and in any case diseased fruits should be removed and bm^ned. GENERAL SURFACE DISEASES Potato Blight of Tomatoes.—The disease of tomatoes caused by Phytoj^hthora infestans (Mont.) De Bary, universally known as the cause of the late bhght of the potato, rarely attacks tomatoes grown in glasshouses in this country. It is, however, a common disease of outdoor tomatoes, and one may su
. Fig. 34. Gummosis of the cucumber caused by Cladosporium cucumerinum : (a) Leaf lesions, (6) fruit lesions, (c) hypha5 and spores, {d) spores. bad cases spraying with hver of sulphur and flour paste is recommended, and in any case diseased fruits should be removed and bm^ned. GENERAL SURFACE DISEASES Potato Blight of Tomatoes.—The disease of tomatoes caused by Phytoj^hthora infestans (Mont.) De Bary, universally known as the cause of the late bhght of the potato, rarely attacks tomatoes grown in glasshouses in this country. It is, however, a common disease of outdoor tomatoes, and one may successfully predict its appearance if abundant rain falls in July or August. Indeed, so serious is this disease in wet seasons that the outside tomato crop is frequently ruined, unless regular
Size: 2161px × 2313px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectplantdi, bookyear1923
