Diseases of fruit and nut Diseases of fruit and nut crops in the United States in 1921 diseasesoffruitn20hask Year: 1922 124 CITRUS - V/ither tip and anthracnose order to germinate and the dry sumner in California is not favorable. The disease was reported from southern Louiiiiana where it was of minor importance. 1. Burger, 0. P. Variations in Colletotrichum Aloeosporioides. Jour. Agr. Res. 20: 723-73G- Feb. 1, 121. V/ither-tip of lime caused by C-loeos'oorium limetticolum Clausen Lime wither-tip war reported by V/inston as occurring in about the same localities in Florida from whicix ho re
Diseases of fruit and nut Diseases of fruit and nut crops in the United States in 1921 diseasesoffruitn20hask Year: 1922 124 CITRUS - V/ither tip and anthracnose order to germinate and the dry sumner in California is not favorable. The disease was reported from southern Louiiiiana where it was of minor importance. 1. Burger, 0. P. Variations in Colletotrichum Aloeosporioides. Jour. Agr. Res. 20: 723-73G- Feb. 1, 121. V/ither-tip of lime caused by C-loeos'oorium limetticolum Clausen Lime wither-tip war reported by V/inston as occurring in about the same localities in Florida from whicix ho reported it last jear. It was apparently less prevalent, however, than in l'y20, probably on account of the dry weather. This is the only major disease of lime in Florida, being present in practically all of the groves and affecting 2 of the plants. A loss of C'5>000 was esti- mated for 1921, The Key or lime which is the only commercial variety of consequence, is very susceptible to infection. Mottle leaf ( cause undetermined) Pig. 22. Areas in Florida where mottle leaf is most prevalent according to J. R. \7inston, I92I, Mottle leaf v/ar; reported from Florida and the Philippines during 121. \7inston regards this as one of the major diseases of oranges in Florida, mottling the leaves, reducing annual grov/th, and kill- ing back the tvigs. He makes an estimate of about 0250,000 loss in Florida for I921. Oranges are more susceptible than grapefruit. The Pineapple variety is quite susceptible. Trees on root stocks not adapted to particular soil type, such as sour orange on high pine land are likely to be mottled. Deep plowing sometimes seems to induce mottling. Excesrive use of lime on thin soil is almost certain to be followed by mottle leaf. Where the injury is apparently induced by lime the use of organic matter, such as cover crops or stable manure, is verj'' efficient in control. In the Philippines, Lee- has obsoi-ved that certain stocks are conducive to mottle lea
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