314 p:xperiment station record. 



The codling moth and apple rot, C W. Mathews {Kentucky ^Sta. 

 Rpt. 7SV .;, pp. 51-59). — A discussion of the occurrence together of 

 insect and fungus injuries to apples. As the moths seemed to choose 

 the most perfect apples on which to deposit their eggs, those trees that 

 had been sprayed Avith Bordeaux mixture against the rot suffered most. 

 The most damage was done by a second summer brood of the moths. 

 As a leinedy, spraying with Paris green about July 1 is advised. 



Corn insects, fl. Osborn {loiva ^ta. Bui. 24, pp. 991-1005, Jigs. 13). — 

 A ])oi)u]ar bulletin, more or less compiled, on the chief insects that affect 

 maize while it is growing and after it is harvested. For the insects that 

 work under ground in general is recommended early fall i)lowing of the 

 land which it is intended to plant the next year in corn. The insects 

 that work above ground must be combated according to the local condi- 

 tions and the damaging species. Bisulphid of carbon is advised against 

 insects affecting stored grain. 



Description, life history, and treatment are given for the following 

 species: Corn-root louse {Aphis maidi-radicis), corn-root worm {Dia- 

 brotica lonyiconris), corn billbugs {tSpJioiopJiorus ochrcus, IS. parvulus, 

 and *S'. .sciiJptilis), wireworm {Melaiiofus communis), sodworm {Crcunhns 

 intcnninelJus), cutworms {Hadena devastatri.r, and Agrotis suhgotluca), 

 stalk borer {Gorti/na nitela), chinch bug, corn leaf plant louse {Aphis 

 maidis), corn worm {Heliothis armigera), and Augoumois grain moth 

 {GeJecliia cerealeJln). 



Report on the extermination of the Gypsy moth {Agriculture of 

 MassachuHetts, ls9o, pp. 262-302, pis. (I, map 1). — A report on the work 

 of the (lypsy Moth Commission during the year 1893, with a resume of 

 the work done since 1880 and a plan of the work for 1894. The moth 

 has been exterminated in all but 18 townships, as against 30 in which 

 it Avas abundant in 1891. The means of dealing with the moth that 

 has proved most effective is placing bands of burlap about the infested 

 trees and those near by, under which the caterpillars crawl for conceal- 

 ment. The trees are examined every few days and the eggs, caterpillars, 

 and pupai are destroyed. The insecticide that proved to be the most 

 satisfactory is a patent substance called gypsiue, which did not injure 

 the foliage, even Avhen used in so large a proportion as 25 lbs. to 150 

 gal. of water, and was very destructive to the caterpillars. 



In 1893 there were inspected 4,108,494 trees, of which 44,716 were 

 found to be infested by the pest. Buildings, wooden fences, and stone 

 walls wei-e also inspected and clearcjd. It is estimated that 1,173,351 

 caterpillars, 77.029 pup;e, h^CMr) moths, and over 50,000 Qgg clusters 

 were destroyed during the year. The number of men employed in the 

 work varied throughout the year, the largest number being over 150 

 during part of July. Many caterpillars in uudergrowth on the borders 

 of woodlands were destroyed by burning the tracts with crude oil. An 

 insect lime was also used in banding trees to prevent caterpillars from 

 climbing them, but it did not prove as effective as the year before. 



