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 . isease attacking the cucurbi-taceous plants which has spread over so wide a ter-ritory in the last few years and which has so baf-fled the scientists in their efforts to find a meansfor its control as this. It was discovered in 1893 byDr. Erwin F. Smith of the department of agricul-ture, attacking cucumbers and muskmelons. andsince that time much thought and labor have l)e
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 . isease attacking the cucurbi-taceous plants which has spread over so wide a ter-ritory in the last few years and which has so baf-fled the scientists in their efforts to find a meansfor its control as this. It was discovered in 1893 byDr. Erwin F. Smith of the department of agricul-ture, attacking cucumbers and muskmelons. andsince that time much thought and labor have l)eenexpended in trying to find a practical remedy ormeans of preventing the disease. Up to the presenttime, however, it may be classed with the pearblight in this respect. Dr. Smith has proved veryconclusively, however, that the disease is due to aspecific bacterial organism, and that it is conveyedfrom diseased to healthy plants by means of thestriped cucumber beetle (Diahrotica vittata), and heis also of the opinion that it is communicated by thesquash bug (Anasa trisfis). The disease may make its appearance at almostany time during the summer and spread more or lessrapidly as favorable or unfavorable conditions seem. 80 INSECTS AND DISEASES 8l to prevail. It is not very probable that the germsare carried over in the soil from one season to thenext, as the writer has seen fields of cantaloupesentirely destroyed by this disease which wereplanted on soil which had not grown a crop of can-taloupes for twenty years. I\Iost melon growersare familiar with the characteristic appearance ofthe disease. As scon as the germs enter the leafor leaf stem, they multiply very rapidly, until thecirculation of sap is cut off by clogging of the waterducts, when that portion of the leaf beyond thepoint of attack wilts and dies. As stated above, ithas been clearly demonstrated that the disease maybe spread by means of the striped cucumber beetle,and possibly others. Destruction of the leaf-eatingin
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisher, booksubjectmelons
