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JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 8 



treated trees." In the Hawaiian Islands, however, we found that the 

 spray does have a drawback from which Mally claims it was exempt — 

 it does attract the honey bees. In one experiment fruit trees were 

 sprayed which were not flowering but which were in the immediate 

 vicinity of others that were in blossom. Hone}^ bees were visiting 

 these flowers in large numbers. Several hours later honey bees were 

 observed feeding on the poisoned bait which was on the leaves of the 

 treated trees, and also on the leaves of some shrubs and grass beneath 

 the trees. 



Mally 1 also claims that citrus trees in blossom were sprayed 

 . . . to determine the likelihood of. destroying honey bees but in 

 no case was a bee seen to feed on the poisoned sweet. It is possible 

 that the blossoms were so much more attractive that the bait was no 

 temptation." In the Hawaiian Islands, some of the honey bees will 

 desert the best honey-producing flowers and seek the poisoned bait. 

 At different times during the year when the algeroba, avocado, various 

 kinds of citrus trees, papaia and peach trees were in blossom, these 

 trees were sprayed with the fruit-fly remedy. Many honey bees, 

 which had been observed visiting the flowers before spraying, left the 

 flowers after spraying and were seen lapping up the deadly solution. 



A record was kept of all beneficial insects, such as ladybird-beetles, 

 staphylinids or rove-beetles, stylopids or strepsipterons, lacewings, 

 tachinids and hymenopterous parasites which were captured in the 

 kerosene. The following table shows a list of insects that were caught 

 before, during and after spraying: 



TABLE IV 



List of Beneficial Ixsects Captured in Ten Kerosene Traps Before, During 



AND After Spraying 



PREDACEOUS INSECTS 



During 



Before and after 



spraying spraying 



Coccinellidoe 



2 Ooccinella repanda Thunb 7 



9 Cryptolsemus montrouzieri Muls 16 



20 Orcus chalybeus Boisd 13 



3 Platyomus lividigaster Muls 2 



4 Rhizobius ventralis Muls 14 



1 Vedalia cardinalis Muls 0 



1 Scymnus vividus Sharp 0 



1 Sticholotus punctatus Crotch 2 



41 54 



4 Coccinellid larvae 4 



7 Staphylinids 3 



1 Lacewing larva 0 



53 



61 



