337 



Britton (W. E.) & Zappe (M. P.). Miscellaneous Insect Notes.— 



Conn. Agric. Expt. Sta., New Haven, Bull. 234, 1922 pp 194- 

 202, 4 plates. 



Eulia juglandana, Fem., occurred on hickory trees, apparently 

 for the first time on record in Connecticut. Considerable injury 

 was done to maize by Papaipema nitela, Gn., which is also 

 recorded from tobacco. A weevil, Mononvchus vulpeciihis. F., was 

 found breeding in the seed pods of Japanese iris. The Geom'etrid, 

 Aplodes mimosaria. On., and the Chrysomelid, Colaspis favosa. 

 Say, injured bayberry ; spraying with lead arsenate is advocatecl 

 against the latter, and also against Typophonis [Paria] canellus, F., 

 feeding on the tender terminal leaves of Japanese walnut. Witch 

 hazel was attacked by the Noctuid, Conistra indirecta, Wlk. Great 

 damage was caused to willows by Plagiodera versicolor, Laich., which 

 may be controlled by spraying with arsenicals. Wliite pine was 

 injured by the Scolytid, Ips calligraphus. Germ., but this beetle is 

 thought to be only a secondary cause of death of the trees. Injury to 

 larkspur plants previously thought to be of bacterial origin is now 

 considered to be due to a mite, probably Tarsonemus pallidus. Banks. 

 The Pyralid, Omphalocera dentosa, Grote, shows a preference for the 

 common barberry [Berheris vulgaris), but it occasionally attacks 

 Japanese barberry (5. thunhergii). Euphoria inda, L. (bumble flower 

 beetle) is recorded as injuring sweet maize by eating the immature 

 kernels. The beetle appears in late summer or early autumn and 

 breeds in rotting turf, manure and other decaying matter. There 

 is only one generation a year. Hand-picking is the best means of 

 controlling this pest. 



The adults of Monarthropalpus huxi. Lab. (box leaf-miner) emerge 

 towards the end of May and beginning of June, at which time remedial 

 measures should be applied. Those recommended are spraying both 

 surfaces of the leaves with common molasses diluted with three parts 

 of water, which causes the midges to become entangled, or spraying 

 with Black-leaf 40 and Black-leaf resinate alternately, each diluted 

 with 500 parts of water. This treatment should be repeated four or 

 five times during the period of emergence of the adults. Hibernation 

 occurs in the larval stage. 



Coptodisca splendor if erella, Clem., occurs throughout the northern 

 United States from Maine to Minnesota, and has also been recorded 

 from Canada. The eggs are laid on apple leaves in May, and the young 

 larvae make a blotch-shaped mine in the leaf. When nearly full 

 grown the larva lines the -mine with silk and cuts out the case in the 

 shape of a shield ; these cases are attached to the bark and hibernation 

 occurs in them. There are two broods each season. Spraying orchard 

 trees with lead arsenate, including nicotine sulphate, will probably 

 reduce the injury. 



Syntomaspis druparmn, Boh., was discovered on apples in Con- 

 necticut during 1921. The winter is passed in the larval stage in the 

 seeds, but although there is only one generation of this Chalcid a year, 

 only certain individuals emerge as adults the following spring. More 

 than half lived over in the seed for two winters before transforming. 

 All fallen fruit, especially of wild seedlings and crab apples, should be 

 destroyed. If the apples are made into cider, the pomace should 

 be destroyed, as the larvae in the seeds will probably not be killed in 

 the press. 



,{6782) Wt.P.6/200 1500 7/22 Harrow G.75 Z 



