862 EXPERIMENT STATION RECORD. 



application commenced on June 4, at a time when tlie young fruit was just 

 forming and the inner calyx cup easily reached. The Bordeaux nozzle was 

 used in the application. A second application was made in the 6-acre orchard 

 about June 25, a Friend nozzle being used. The G-acre orchard produced fruit 

 about 99 per cent free from worms, the 10-acre orchard fruit about 70 per cent 

 free and 2 acres unsprayed about 20 per cent free. 



Experiments conducted show that either 3 lbs. arsenate of lead to 40 gal. of 

 water or * lb. of Paris green to a like quantity of water is sufficiently strong 

 to kill the larvte of the potato beetle and that any larger quantity used is only 

 wasted. Good results were obtained in the eradication of croton bugs (Eclo- 

 hia fiennaic(i), which infested certain parts of the college residence, from the 

 use of a commercial product containing a considerable amount of phosphorus. 

 The home-boiled lime-sulphur wash gave good results against the pear-leaf 

 blister mite on apples. 



Spraying experiments for the codling moth were conducted by L. Caesar in 

 an orchard of 25 acres at Stoney Creek. The first spraying was begun June 

 5, at which date nearly all the blossoms were off the Astrachan trees and other 

 early varieties and most of them were ready to fall from the later varieties. 

 For this spray arsenate of lead alone, 2 lbs. to 40 gal. of water, was applied 

 at a pressure of 140 lbs. About 3 weeks after the first application was com- 

 menced a second was made, consisting of self-boiled sulphur, made up of 10 

 lbs. lime and 10 lbs. sulphur, boiling water being used to slack the lime and 

 the mixture then being diluted with 40 gal. of water, 2 lbs. of arsenate of lead 

 added, and applied with a Friend nozzle at a pressure of IGO lbs. In the lower 

 half of the (jrchard 9G per cent of the picked apples were free from worms, and 

 88 per cent in the upper half. 



Observations indicate that home-boiled lime-sulphur wash (20-15-40) ap- 

 plied to the trees shortly before the leaf buds burst is the most satisfactory 

 treatment for the oyster shell scale. Experiments with caustic soda (Gillett's 

 lye) show that in order to be of value against the scale it has to be very 

 strong. Thirteen cans, which contained approximately 10 lbs. of caustic soda, 

 to 40 gal. of water, was found to be necessary to give fairly good results, 



[Report of the entomologist of Mozambique], C. W. Howard (Mozamhiqiir 

 Dc'pt. Ayr. Bill. 1, iq). lo-i.i). — This is a preliminary report of observations 

 made of the various insect problems in I'ortuguese East Africa. 



Among the enemies of citrus fruits mentioned are the orange-tree butteifly 

 caterpillar {Papilio dcmoleiis), California red scale {Clirysomphalus aurantii), 

 Florida red scale (C. aonidum), purple scale, soft scale, orange mealy-bug, 

 citrus psylla [I'syJhi sp.) citrus ai)his (HipJionopIioru cHrifolii), cottony 

 cushicm scale, and orange codling moth ( Eiiarmoiiiu hntnichopd). The greedy 

 scale occurs on apples, pears, and grapes, and a species of thrips damages- man- 

 goes, roses, and several ornamental shrubs. About Mngude, the stock borer 

 (Sesamia fiisca) has been found attacking maize. The South African cotton 

 stainer ( Dpsdcrcus sp.) is reported to be very common in the Province. The 

 bagrada bug (Bagrada hilaris), a pest of cruciferus crops, is present in many 

 places. The red winged locust (Cyrtocanthacris septcmfasciata) is the migra- 

 tory species occurring in Mozambique. Observations on ticks and mosquitoes 

 and a list of the more important fungus discjiscs are also included in the rei)ort. 



Some new species of Mallophaga from Michigan, M. A. Carriker. Jr., and 

 C. A. Shui.i. (/•;*;/. Xcirx. i/ iHUO). No. 2. pp. 'jI-'u, pL 1). — ColpiiccphaJum 

 spinuh>!<iiiii ohsciirinn from the turnstone (Arcnarin iiitcrpres) ; C. ocularis, 

 also from the turnstone; G. suhpu.stuhitum, from Ccryle alcyon; Mcnopon hir- 

 !<iitinii. from Dryohatcs pubesccns; and Nitzschia latifrons, from Riparia riparia 

 are described as uew, 



