. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. 22 Koncrations each year. Tlicso IhxkkIs are not well sei)arated, all sta<;es l)ein<,r found at almost any time. There are, however,' certain periods when crawlers are most abundant; these periods are March or eady April, June or July, and vSei)teml)er or October. 20. Like the white flies, the armored scales are, in the Kulf-coast re-ion, much infested with parasitic funriods of the \'ear. There are thrcx^ fun-i which are chiefly concerned in keeimiK down the l)ur])k> scale. These are the red-headed scale fun-us, the ^ray
. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. 22 Koncrations each year. Tlicso IhxkkIs are not well sei)arated, all sta<;es l)ein<,r found at almost any time. There are, however,' certain periods when crawlers are most abundant; these periods are March or eady April, June or July, and vSei)teml)er or October. 20. Like the white flies, the armored scales are, in the Kulf-coast re-ion, much infested with parasitic funriods of the \'ear. There are thrcx^ fun-i which are chiefly concerned in keeimiK down the l)ur])k> scale. These are the red-headed scale fun-us, the ^ray- headed scale fun^^ais, and the black scale fun^^ais. In addition to these, the white-frin<i;ed fun»;us, the turbinate fiui^ais, and the cinnamon fun- dus are occasionally found as jjarasites on the annored scales. Th(» red-headed scale fim^us is first noticed as a little, cur\'ed, scarlet honi i)r()- trudin^^ from imder the ed<,^e of the scale and curx'ino- u]jwards. Iliis is the fruiting body of ,,,.,, the fun'-headed scale fundus ends in more of a hke swelling and when fresh is li^ht gray in color, but turns to a brown color as it gels older. The characteristic club-like swellings of tlK^ Kra>'-headed scale ftuiKus are shown in twice their natural size in T^i. 17. The black scale fungus is most often met with on tlu> tmnk and branches of a tree, where it tonus a black mass as shown in Fi^r. Fk;. 17 §28 CITRUS FRUITS IN GULF-COAST STATES 23 These parasitic fungi, although more abundant in the sum- mer than at other times, are more a]>t to work throughout the wmtcM' than those that are ])arasites (.f the white flies and thev are vwn more efneient in kecking down the scales. So impor- tant are these parasitic fungi that if they are destroyed as happens when the trees aiv spra>-ed u'ith Bordeaux mixture to kill tungi, the ]>uri)k« scales at once increase to such an extent £is t(3 severely damage (.r ex'cn kill the trees unless l)ro
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