248 INSECT ENEMIES OF THE CODLING MOTH. 



week of January and the first two weeks of February. The 

 presence of these insects in the bands suggested the possibiHty 

 that they were predaceous on codhng larvae. To determine if 

 this were a fact crickets were confined in flower pots, and a 

 definite number of codhng larvae was supplied daily. The 

 records may be found in Table 6. 



These records, and other observations, show that the crickets 

 do not eat much for a few days before they moult. The 

 adults ate more larvae during February when the weather was 

 warmer. One cricket was seen to devour its exuviae after it 

 had moulted, and on another occasion a female cricket devoured 

 its mate. This indicates that the species is predaceous on other 

 animals, which prevents it from becoming a very eflicient enemy 

 to codling in the field. The enclosed crickets will devour pupa? 

 as well as larvae. 



Comparative records of collections of codling larvae and 

 crickets from individual trees for several weeks show that a 

 great number of crickets in the bands does not seem to have 

 an influence on the number of larvae in the bands, thus indicating 

 that the crickets do not destroy many codling larvcT in the field. 

 The records in Table 7 illustrate this hypothesis. It will be 

 noted that those bands from which the largest number of larva; 

 was collected contained the smallest number of crickets. 



The Effectiveness of Coraiiiis papillosus Tiiung.. a Reduviid, 

 AS A Predaceous Enemy of Codling Larv.e. 



This insect was first observed in the bands on December 16, 

 and was present in considerable numbers until the fruit was 

 harvested. Several were discovered during the season, sucking 

 the liquid from the codling larvae, which they had ])enetrated by 

 means of their probcscides. The insect, which is said to be 

 common in the Western Province, was identified by Dr. L. 

 Peringuey. 



To determine the efficiency of this Reduviid as an enemy to 

 codling, six adults were confined in a glass jar, and a definite 

 number of larvae was supplied dailv, with the results shown in 

 Table 8. 



The records indicate that this Reduviid is not as effecti\e 

 economically as the cricket. The records in Table /, which 

 show that the greatest number of bugs was in those bands which 

 trapped the greatest number of larvae, further substantiate this 

 statement. 



Conclusions Regarding the Effectiveness of N.\tural 



Enemies in Controlling the Codling Moth. 



Predaceous and parasitic enemies O'f the codling' moth 



cannot be relied upon satisfactorily to control the codling moth. 



especially because they begin their beneficial work too late in 



the season. No matter how efficient a parasite might be in the 



