Eleventh Report of the State Entomologist 279 



nizing each are given. As the proper remedy — thorough arsenical 

 spraying will not be generally resorted to, it is urged that every effort 

 be made to destroy the pupae, which transform upon the pavement and 

 in crevices where they are easily reached, by kerosene, hot water or 

 strong soapsuds. Importance of fighting this insect, which is far more 

 destructive to elms than the Orgyia /eucostigtiia. 



Elm-Leaf Beetle. (Country Gentleman, for August i, 1895, Ix, p. 568, 

 c. I — 10 cm.) 



" Small worms about half an inch long that in a short time eat all 

 the leaves of an elm shade tree" m Oceanport, N. J., are those of 

 the elm-leaf beetle, Galerucella xanthomelcena \luteola\. The best 

 remedy for them is spraying the foliage with i lb. of Paris green to 

 200 gallons of water at the time that the eggs are hatching in early 

 spring. If the tree is large, a hose 50 to 100 feet long should be car- 

 ried into the tree and the spray thoroughly distributed therefrom. 

 When the larvae descend the trunk about the middle of July and change 

 to small yellow pupae, they should be killed with hot-water, kerosene, 

 strong soapsuds or tobacco water. 



Horn-Tail Borer. (Country Gentleman, for August i, 1895, Ix, p. 568, 

 cols. X, 2 — 12 cm.) 



An example of the insect is sent from Fort Wayne, Ind., for name 

 and remedy. Trcrnex columba is not regarded as particularly 

 injurious, for although its larva runs broad burrows in the trunks of 

 trees, it usually selects for oviposition such as are already diseased. 

 Fortunately it has effective parasites in the two species of " long 

 stings" — Thalessa airata and Th. lunator which are drawn to the 

 infested trees, and by the aid of their long ovipositor insert their eggs 

 deeply therein. The larvae burrow in search of the Tremex, to which 

 when found, they attach themselves and eventually consume it. The 

 "long stings" usually control Tremex attack. 



Orchard Insects. (Country Gentleman, for August i, 1895, Ix, p. 568, 

 c. 2 — 15 cm.) 



A remedy is asked, from Augusta, Ga., for " plum and peach trees 

 of which the fruit is full of worms." From an inquiry so general the 

 attacking insects cannot be named, and consequently no remedy can 

 be suggested. The fruit of each harbors the larvae of the plum cur- 

 culio and the codling moth, and the peach, that of Xylina cinerea. 



The Black Peach Aphis. (Country Gentleman, for August 8, 1895, Ix, 

 p. 583, c. 2— 17 cm.) 



This aphis, the Aphis persicae-fiiger, is reported as occurring on the 

 roots of trees in an orchard, attacking tree after tree in the rows. In 

 a Maryland nursery one hundred thousand trees were killed in three 

 weeks' time. Its life- history is briefly given and how its increase may 

 be prevented. 



