FUNGOUS AND PHYSIOLOGICAL DISEASES. 477 



boxes, it may be injured and the fungus have a chance to 

 attack the fruit, most usually developing where two are 

 pressed closely in contact. In the field it frequently at- 

 tacks fruits hanging together on the trees and causes con- 

 siderable damage. In California, Woodworth reports the 

 entrance of the fungus through the navel end of the Bahia 

 orange as being quite common. 



Treatment. Fruit should be carefully handled and 

 packed. The fruit should be thoroughly cured and dry 

 when packed. Carefully wrap the fruit, using a good 

 quality of paper, one not readily affected by moisture. 

 This will prevent the spread of the disease from one fruit 

 to another in the box. If the spores of the fungus have 

 become abundant in the packing house, it should be 

 tightly closed and fumigated by burning sulphur in it. 

 Plenty should be used. Thorough ventilation of the pack- 

 ing house will assist materially. Cull fruit should not 

 be left about to rot and decay. Decayed fruit should be 

 destroyed, preferably by burning. 



Sooty-mold, Meliola Camelliae (Catt.) Sacc., is 

 widely distributed throughout the different sections 

 where citrus fruits are grown. It occurs as a sooty- 

 black covering on the leaves, fruits and twigs of many 

 plants, and is intimately associated with various insects 

 belonging to the families Aleyrodidae Coccidae and 

 Aphididae. In Florida it follows Lecanium oleae on Ne- 

 rium oleander and Per sea Carolinensis ; Aphis gossypii 

 on the orange, eggplant, and many other herbs, shrubs 

 and trees; Lecanium hesperidium, Ceroplastes floriden- 

 sis, I eery a purchasi, Aleyrodes citri and other insects on 

 citrus trees. In short, may be said that it is found 

 with all the scale and allied insects which exude honey- 

 dew in any considerable quantities. 



