250 EXPERIMENT STATION EECORD. 



sites were reared, namely, Limnrriinn hawaiicnsc, Chcloniis hlackbiirni, and 

 Crema s tiis hy men ia\ 



Experiments with insecticides in wliicla Paris jrreen and lime, Paris green 

 and whale-oil soap, arsenate of lead and molasses, lime-snlphur solution, and 

 lead chromate were used, are briefly reported. They show that this pest can 

 be controlled by Paris green when applied at the rate of 2 lbs. in 100 gal. of 

 water and that this strength will not burn beet foliage. It was found better in 

 this formula to omit the use of lime and use whale-oil soap, since the soap 

 serves as an effective adhesive agent and when it is used the poison is very 

 evenly distributed over the leaf surface. Tests of lead chromate indicate that 

 it has good points and should be given a more thorough trial. A formula con- 

 sisting of nicotiu sulphate 1 fluid ounce, whale-oil soap 4 oz. and water 4 gal., 

 which was successfully used by the author at Honolulu in controlling the com- 

 mon cabbage worm, the larva of the diamond-back moth, a looper (Autographa 

 precationis) , and the beet army worm {Caradrina exiyua), is recommended for 

 use in combating this pest on spinach. 



Technical descriptions of the earlier stages are given by H. G. Dyar (pp. 11, 

 12). A compilation of the description and synonymy of this species, an outline 

 of its distribution and history, and a bibliogi'aphy, by F. H. Chittenden (pp. 

 12-15), are presented in an appendix. 



Papers on insects affecting vegetables. — The southern beet webworm 

 (Pachyzancla bipunctalis), F. H. Chittenden {U. S. Dept. Agr., Bur. Ent. 

 Bui. 109, pt. 2, pp. 17-22, fig. 1). — This pest is shown to have been the source of 

 injury to table beets in the vicinity of Wichita Falls and Brownsville, Tex., 

 and at Dade City, Cutler, Miami, and Boynton, Fla. It has also been observed 

 working in colonies on the foliage of pigweed (Amaranthus retroflcxus), spiny 

 amaranth {A. spinosus), and spinach in the vicinity of Brownsville, Tex., and 

 on the first mentioned at Miami, Fla, 



Miscellaneous notes on its biology and technical descriptions of its stages 

 are presented. The species is said to be of tropical origin and inclined to be 

 cosmopolitan in any country suited to it climatologically. The National Museum 

 collections contain material from Pernambuco, Bonito Province, Brazil, as well 

 as from Georgia, Texas, Florida, and the District of Columbia, and it has been 

 recorded from the West Indies and South Africa. 



The tachinid fly Phoroccra erecta, an iehneumonid of the genus Amorphota, 

 and a species of Bracon have been reared from this pest. Several associated 

 insects are mentioned, including the Hawaiian beet webworm (Hijmenia 

 [Zinckenia] fascialis), above noted, which was reared at Cutler, Fla., in March, 

 1909 ; an agromyzid fly reared from material collected on beets and Amaran- 

 thus at Boynton, Fla. ; and the authomyiid fly Pcgomya ruficcps. 



Paris green used at the rate of 1 lb. to 75 to 100 gal. of water, also recom- 

 mended for use against the garden webworm (Loxostege similalis), will con- 

 trol the pest. 



Grapevine pests: The grapevine sphinx, J. Feytaxjd {Cult. Franc, 5 

 (1911), No. 14, pp. 5, 6; ais. in Internat. Inst. Agr. [Rome], Bui. Bur. Ag^: 

 Intel, and Plant Diseases, 2 {1911), No. 5, p. 1191). — Deilephila elpenor feeds 

 on the leaves of the grapevine and attacks various other plants, including 

 willow-herb, bed straw, purple loosestrife, fuchsia, etc. Among its parasites 

 mentioned are ichneumons of the genera Anomalon, Cryptus, Ichneumon, etc., 

 also Doria concimuita, Micropalpus coniptus, and RcemWiacea erytlirostomn. 



Concerning bacterial diseases of the bee moth (Galleria nielonella), S. 

 Metalnikov {Ztschr. Wiss. InseUenhiol., 7 {1911), No. 5-6, pp. 178-181).— The 

 author finds that while the caterpillar of the bee moth possesses an exceptional 

 immunity against tubercle (the fish type excepted), paratyphoid, sausage poison- 



