582 NEW JERSEY STATE AGRICULTURAL. 



hours we secured two colonies, one for New Jersey .'ind one for 

 F'lorida. At that time, near the middle of the day tlie Ix^tles 

 were on the undersides of tlie leaves and it was dit'ficult to see 

 them since they choose the denser and most sheltered parts of the 

 tree. Mr. Newell asserted that they were more active in the early 

 morning and late afternoon and that then they could l)e found 

 on the trunks and branches. To test this we went to the orchard 

 ag-ain after 4 p. m., after a heavy downpour of rain which lasted 

 from about i 130 to 3 :30 p. m. There was intermittent rain until 

 nearly 6 o'clock and during the time that we were among the 

 trees we collected two additional colonies. There was a little 

 difference in the habits of the species and more of th.tm were on 

 the branches, actively feeding. On one tree which wc had c<?l- 

 lected over very thoroughly in the morning, intending to strip 

 it, we found as many more examples in the afternoon. One other 

 colony was secured early on the morning of Saturday, July 23rd. 

 These plum trees had all been sprayed with the lin:e, salt and 

 sulphur wash, during the previous winter, and already, on July 

 4th and 5th, Mr. Newell had collected two colonic.^ from the 

 same trees. This would seem to indicate that the beetles might 

 live over in spite of spraying; but unfortunately there is another 

 suggestion. 



Mr. Kotinsky asserts positively that he examined every tree in 

 this lot in May and found no trace of C. sitnilis in any stage. 

 Thereupon he liberated in the orchard the colony of mixed C. 

 hiviilnerus and similis that he had collected at Marshallville. The 

 suggestion is, of course, that the sj^ecimens taken by Mr. Newell 

 and myself were descendants of this lilierated colony in the 

 second generation, a matter which cannot l)e disproved for the 

 contention that spraying does not necessarily kill the Coccinellids. 



Saturday evening we were back in Atlanta, whence I started 

 for New Jersey next day. During the trip as a whole, Mr. 

 Newell and myself gathered in the four different places visited 

 about 200 specimens in all stages of what seemed to he. certainly, 

 C. similis. Rather more than half of these went to New Jersey 

 and the remainder to Florida. 



Of fither predatory insects feeding on the scales the little 

 Pcntiliii occurred sparingly; but Mr. Newell claiuT^ that it is 

 much more ccmimon in the northern part of the State. From the 

 practical standiK)int it is no more effective than the species of 

 Chi loco nts. 



The net results of the investigation made is that the Cliil(horns 

 similis in Georgia has done no l)etter than it has in Xew Jersey. 



