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CALIFORNIA FRUITS: HOW TO GROW THEM 



bran remedy, prepared as already described for cut-worms. A table- 

 spoonful is thrown by the side of each vine or tree. If placed on 

 shingles about the vineyard, much of the poison not eaten may be 

 afterward gathered up and saved.* 



Red Spider and Other Mites. Very minute insects, usually dis- 

 cernible only with the aid of a magnifier, sometimes destroy the leaves, 

 causing them to lose their color and health by their inroads upon the 

 leaf surface. The red spider and yellow mite are conspicuous exam- 

 ples ; they infest nearly all orchard trees, especially the almond, prune, 

 and plum. The eggs of the red spider are ruby-red globules, as 

 seen with the magnifier, and are deposited in vast numbers upon the 

 bark of the tree, and leave a red color upon the finger if it is rubbed 



Hawk Moth larva. (Philampeles achemon Drury.) 



over them. The eggs are very hard to kill, and treatment is most 

 effective when applied in the spring and summer after the mites are 

 hatched out. The popular remedy is a thorough dusting of the trees 

 with sulphur. On a large scale the sulphur is applied in a cloud by 

 means of a modification of the broad-cast barley sower or with the 

 sulphur machines specially made for this purpose. On a small scale 

 it may be applied with a bellows as for grape-vines, or shaken from a 

 cheese-cloth bag at the end of a pole. Sulphur sprays have been found 

 most effective in controlling the red spider. The ingredients of the 

 sulphur sprays are prepared as follows: 



*For the protection of nurseries, orchards, and vineyards it is often necessary to resort 

 to various devices for excluding the grasshopper, or for destroying them upon adjoining 

 fields. Publications describing such devices are Bulletins 142, 170 and 192, University 

 Experiment Station, Berkeley. 



