ECONOMIC ZOOLOGY ENTOMOLOGY. 651 



the source of cou.siderable injury to alfalfa, and two species of apple red bugs 

 were found in considerable numbers. The occurrence of a snout beetle (Ana- 

 metris grisrii) on a[tple for the first tiuje in Michigan, a tree hopper (Ceresa) 

 in young apple orchai'ds where it killed the twigs, and the clover seed cater- 

 pillar (Enarmonki intcrstinctaiw) which injured June clover heads in a re- 

 stricted area after a rest of some 20 years, is reported. 



Report of the department of eiitomolog-y {Oregon Sta. Bicn. Crop Pest and 

 Uort. Rpt. J913-IJf, pp. 95-202, figs. 98). — This second report, prepared under 

 the Crop Pest and Horticultural Law of 1911 (E. S. R., 29, p. 158) contains 

 a statement of the investigations carried on during the years 1913 and 1914, 

 ;ind summarized accounts of important insect pests, including the nature of 

 their injury, life history and habits so far as known, technical description, 

 methods of control, and references to the literature thereon. 



The insects thus discussed are the fruit tree leaf Syneta (Syneta albida) 

 i'ud the eye-spotted bud moth by H. F. Wilson and G. F. Moznette; the fruit 

 tree leaf roller {Archips argyrospila), the peach twig moth (or peach and prune 

 twig borer), an apple leaf miner iPhyUonoryctcr (Lithocollctcs) cratcegclla), 

 a new cherry pest {Siniplcmphytus pacificiis), injurious gall mites [the pear- 

 leaf blister mite, the grape leaf mite (Eriophyes vitis), the walnut leaf mite 

 {fj. tri.stratus crinea), and the filbert bud mite (E. avellena-)], insect pests 

 of stored products [the Indian meal moth and the saw-toothed grain beetle 

 [Silvatius surinamensis)], the thistle butterfly (Vanessa cardui), grasshoppers 

 in Oregon, insecticide investigations of 1911, and minor insect pests [the Prionus 

 beetle (Pnonus calif ornicus) , the bud weevils {ticiopithes ohscurus, Paraptochiis 

 scUatus, and Thricolepis inornata), the bud click beetle {Limoniiis discoideus), 

 the blossom fly (Bibio nervosiis), a peculiar undetermined apple insect which 

 mines under the skin, the black cherry aphis (Aphis ccrasi) on nursery stock, two 

 •ipple and pear membracids (StictocepJiala incniiis and Cerasa basalts), and the 

 spotted Diabrotica (D. soror) as a fruit pestj, by H. F. Wilson; the variegated 

 cutworm, ami the olive green cutworm (Dargida procinctus), the rose curculio 

 (Rhyncliites bicolor), injuring blackberry buds, the radish weevil — a new pest 

 (Cleonus sparsus), clover seed injured by midge (Dasyneura leguminicola) , 

 nematode gall worms or eelworms (Heterodera radicicola), tiiiulid work in 

 pruue wood (Ctcnopfiora angustipennis), and tomato worms, by A. L. Lovett; 

 the antique or rusty tussock moth (\otoIopIius antiqua), by L. G. Gentner; 

 the brown lace-wing (Hemorobius pacificus), by G. F. Moznette; the alfalfa 

 looper (I'lusia califoruica) as a truck crop pest, by L. Childs; and the rose 

 leaf hopper as a fruit pest (Empoa rosw), by H. F. Wilson and L. Childs. 



The fruit tree leaf Syneta, which has never been recorded outside the Pacific 

 Northwest, is the source of considerable injui-y to fruit trees, including the 

 apple, pear, cherry, prune, etc., through the feeding of the larvfe upon the 

 fibrous roots and the adults upon the flowers, foliage, and fruits. It is stated 

 that cultural methods are not at the present time of any avail and that spray- 

 ing thus far has not been found profitable in its control. Spraying experiments 

 conducted against the bud moth led to the conclusion that oil sprays as ordi- 

 narily used are not effective. The fi'uit tree leaf roller is said to be found 

 quite generally throughout the Willamette Valley. Investigations have led to 

 the recommendation that a 10 per cent crude oil emulsion be applied about the 

 time the buds are opening, or earlier if the eggs are found to be hatching earlier. 

 Should the oil fail to kill the eggs, an application of arsenate of lead 2: 50 

 should be made just before the blossoms open. The apple leaf miner is said 

 to be quite common throughout the orchards of western Oregon, though not 

 serious enough at the present time to warrant special applications of spray. 



