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CALIFORNIA FRUITS: HOW TO GROW THEM 



A common outfit in California for cooking the lime, sulphur and salt. 

 INSECTS BORING IN TWIG, STEM, OR ROOT 



Peach Twig-Borer or Peach Worm.* This larva is probably 

 the most serious insect pest that the California peach grower has 

 had to contend with. The creature hibernates as a young larva in 

 burrows in the crotches of the tree. 



As soon as the tree begins to grow in the spring the larva be- 

 comes active, eats its way out of its winter home and bores into the 

 new growing twigs causing them to wither and die. Later genera- 

 tions of the worm attack the fruit and from the two forms of attack 

 much loss may accrue to the orchardist. 



Destruction of the larvae in their winter burrows overcomes all 

 damage from these pests. This can be accomplished by spraying 

 with the lime-sulphur compound in the late winter or very early 

 spring when the buds are expanding.. 



The Common Borer. An insect which has done vast injury in 

 this State is the "flat-headed apple borer" (chrysobothris femorata). 

 It affects chiefly apples, peaches and plums, etc., which have been 

 injured by sunburn. It is a pale-colored grub with a brown head, 

 the forepart of the body being greatly flattened. The matured 

 beetle is greenish black or bronze colored, copper colored on the 

 under side. If any tree receives any damage to the bark, either by 

 sunburn or other causes, the borer is sure to find it, and it works 



*See Bulletin 144, University of California Experiment Station. 



