Melon culture; a practical treatise on the principles involved in the production of melons, both for home use and for market: including a chapter on forcing and one on insects and diseases and means of controlling the same . ^ d Fig. 19. A rust-resistant Rocky Ford; note the fine netting. in the soil. In no case should watermelons followwatermelons two years in succession. Then, diseased vines should be burned and all infectedfruit l)e disposed of in some place where the landwill not be used for growing melons. Disease-Resistant Plants.—If we go into a melonfield where this disease is
Melon culture; a practical treatise on the principles involved in the production of melons, both for home use and for market: including a chapter on forcing and one on insects and diseases and means of controlling the same . ^ d Fig. 19. A rust-resistant Rocky Ford; note the fine netting. in the soil. In no case should watermelons followwatermelons two years in succession. Then, diseased vines should be burned and all infectedfruit l)e disposed of in some place where the landwill not be used for growing melons. Disease-Resistant Plants.—If we go into a melonfield where this disease is quite prevalent, we willusually find here and there plants which are per- 88 MliLON ClI/rURK iectly healthy and which a,pparently have the powerto resist or to throw off the disease. In fact, somevarieties seem to have that inherent quality, wliichenables them to escape the disease, while othersin the same field succumb to it. This fact enablesthe plant breeder to make his selections of fruitsfor seed from these apparently immune jjlants, andso, after a time, to produce a disease-resistant Fig. 20. A well-sprayed melon vine. (Fig. 19.) Let it be understood, however, that adisease-resistant strain which has been developedin one section of the country wall not necessarilyremain resistant when grown in some other localityimder very different climatic conditions. The tend-ency, however, is for it to become resistant underits new environments much (|uicker and more easilythan if it had never developed that quality. Experiments have proven that a resistant variety INSliCTS AND DISIiASES 89 in Colorado, brought to the moister climate of theOhio valley, developed the old tendency to diseaseagain, but by careful selection after the second orthird generation, under its new environment, itagain became as resistant as before. And so, withonly our present knowledge of these fungous andwilt diseases to guide us, it would seem that theonly satisfactory remedies which may be safelyr
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisher, booksubjectmelons
