vui, D, 2 Jones: Coconut Leaf -miner Beetle 131 



As the eggs, larvse, and pupae of the leaf -miner are protected to 

 a greater or lesser extent within the leaf tissue, hydrocyanic-acid 

 gas is the only insecticide that could be used effectively. This 

 method is only to be recommended in extreme cases, where infes- 

 tation is very heavy. As the beetles are not very active and are 

 almost invariably on the lower leaves of the young coconut palms, 

 they can be readily gathered. The infested leaflets are readily 

 recognized, and can be removed easily and burned, thus destroy- 

 ing the eggs, larvae, and pupae. 



The adults can be removed by hand. Child labor may be 

 employed, and if this method is practiced in the infested young 

 coconut groves it will be an inexpensive and effective way of 

 coping with the situation. 



