. Fruits, vegetables and flowers, a non-technical manual for their culture. he melons ripenprematurely and aresoft, wilted and in-sipid. —Ro-tate crops and spraywith Bordeaux mix-ture. Downy Mildew.—See Cucumber. Anthracnose {Col-letotrichum lagenarium[Pass.], Ell. and Halst.).•—This disease attacksall parts of the vines ofcucumber and squash,but is most injuriousto watermelons, causingthe buds and tendrilsto die and turn blackand the leaves to turnyellow. It is very no-ticeable on the fruit,causing sunken canker-like spots with pinkishcenters. When theyoung fruit is attackedit is l
. Fruits, vegetables and flowers, a non-technical manual for their culture. he melons ripenprematurely and aresoft, wilted and in-sipid. —Ro-tate crops and spraywith Bordeaux mix-ture. Downy Mildew.—See Cucumber. Anthracnose {Col-letotrichum lagenarium[Pass.], Ell. and Halst.).•—This disease attacksall parts of the vines ofcucumber and squash,but is most injuriousto watermelons, causingthe buds and tendrilsto die and turn blackand the leaves to turnyellow. It is very no-ticeable on the fruit,causing sunken canker-like spots with pinkishcenters. When theyoung fruit is attackedit is likely to have abitter —Spray with Bordeaux mixture. Wilt (Bacillus tracheiphilus, E. F. Smith).—This disease of melons andcucumbers, and sometimes of pumpkins and squash, may start with thecentral stem, causing the entire vine to wilt and die quickly, or it may startwith a branch and work slowly back to the central stem. Treatment.—Rotation of crops; avoid those that are susceptible. 1 From Farmeis! Bulletin 488, U, S. Dept. of Enlarged RooTa op Cauliflower Caused by theClub-root Organism.^ 218 SUCCESSFUL FARMING CUCUMBER Downy Mildew (Pscudopcrorwspora cuhenffis, B. and C. Rost.).—Tliis ( causes yellow, angular sj)ots on the older leaves and eventuallycauses the entire leaf to turn i)ale and die. Considerable quantity of whitegrowth ai)]H\irs on the under surface. Trcntmtnt.—Spray with Bordeaux mixture. Anthracnose.—See Melon. Leaf Bhght and Fruit Spot {Cladosporium cucumerinum, KIl. andArth.).—This ai)pears on the leaves tus water spots and finallycauses the entire leaf to wilt and rot. On the fruit it apjxars as minutegray, sunken, velvety spots wliich fretjuently unite and finally become black. Trealinent.—Prompt spraying ^^^th Bordeaux mixture. Wilt.—See Melon. CELERY Leaf Spots {Cerospora apii, Fr., and Septoria petroselini, Desm., ;//j.—There arc two leaf .spot diseases which can be contro
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