560 EXPERIMENT STATION RECORD. 



places in this country, it is concluded that the pest is generally distributed in 

 greenhouses throughout the United States. 



Technical descriptions are given of the immature stages and the habits are 

 discussed. On a few occasions specimens of the mite La-Iajis macropilis have 

 been found fastened to the dorsum of thrips. Details of fumigation and spray- 

 ing experiments are reported. The remedies recommended include fumigating 

 with nicotine papers, nicotine liquid extract, and hydrocyanic-acid gas, and 

 spraying with water, nicotine liquids, and kerosene emulsion. 



A bibliography of 27 titles is appended to the account. 



Descriptions and life histories of two new parasites of the black currant 

 mite, Eriophyes ribis, Adelaide M. Taylor {Jour. Econ. Biol., 4 (.1909), No. 1, 

 ■pp. IS. pis. 2, figs, k ) . — A chalcidid, to which has been given the name Tetrasti- 

 elms eriophyes, is said to be one of the most common and useful enemies of the 

 black currant mite. Nine months are required by this chalcidid to complete its 

 growth. The mite is parasitized by a minute fungus, which is described as 

 new and named Botrytis eriophyes. The chalcidid larvie are also killed by this 

 fungus, as were nut mites {Eriophyes avellanw) and birch mites (E. hetulw) 

 that had been inoculated. 



Lepidopterous enemies of the vine, L. Vivakelli {Rivista [Coneglianol, 

 4. ser., 15 {1909), Nos. 2, pp. 27-31; 3, pp. 56-61; 4, PP- S0-S5; 5, pp. 108-112; 

 6, pp. 123-129; 7, pp. 158-162; 8, pp. 177-184, figs. 15).— A consideration of 13 

 r^pecies that are injurious to grapes in Italy. 



Eggs and stages of the lesser apple worm, E. P. Taylor {Jour. Eeon. Ent., 

 2 (1909), No. 3, pp. 237-239). — Eggs were collected on June 19, 190S, at Olden, 

 Mo., from the smooth surface of small apples and from the upper surface of 

 apple leaves borne near fruit. Although at the time of collection these eggs 

 were noted to be much smaller than others in the lot, they were taken to be 

 those of the codling moth ; upon breeding to maturity adults of the lesser apple 

 worm emerged. 



" The eggs upon apple trees, so far as observed, are deposited singly either 

 upon the smooth surface of the forming apple or upon the upper or glabrous 

 surface of the apple leaves. In this respect the oviposition habits of the moth 

 upon apple is not unlike that of the codling moth. The eggs when freshly laid 

 appear as small semitransparent yellowish-white spots, looking not unlike much 

 flattened and very small drops of milk. In outline they are usually oval, fitting 

 closely down upon the surface as convex disks. Specimens measured upon an 

 average 0.68 mm. long by 0.53 mm. broad, which measurements show it to be 

 a trifle more than one-half the size of the egg of the codling moth. . . . 



" Larvae imder observation spent upon an average of 17 days in the fruit 

 from the time they were seen to hatch until they emerged for pupation. From 

 21 to 23 days elapsed from the time eggs hatched to the emergence of the pink 

 fusiform larvte from the apple for cocoon spinning, and in one instance gave 24 

 days from the time the larva left the apple to the appearance of the adult moth, 

 with an average actual pupal period of 12 to 16 days. The total life cycle of 

 the lesser apple worm was found to be approximately the same as for the 

 codling moth. . , . It is quite probable that eggs of Enarmonia prunivora were 

 already being laid in the orchard late in May, at which time apiJles of standard 

 winter varieties measured from 1 to IJ in. in diameter." 



The fact that the eggs of the lesser apple worm are laid a few days later 

 than those of the codling moth emphasizes the importance of a spray at this 

 particular time. 



Notes on insects affecting the coconut trees in the Society Islands, R. W. 

 Doane iJovr. Econ. Ent., 2 (1909), No. 3, pp. 220-223). — This is an account of 



