490 



probably give good results. As the greatest damage would be done 

 in March and April, when remedies for the strawberry weevil [Antho- 

 nomits signatus] are applied, it would be of great advantage to devise 

 a treatment that would be effective against both pests. 



Work in Connexion with Insect and Fungus Pests and their Control. — 



Kept. Agric. Dcpt. St. Kitts- Nevis, 1920-21, Barbados, 1922, 

 pp. 10-12. [Received 2nd August 1922.] 



Alabama argillacea was very abundant, particularly during the latter 

 part of the season, though no very great damage was done, Paris 

 green being extensively used against this moth. Cotton-stainers 

 [Dysdercus] were slightly more abundant than during the previous 

 year ; and at the time of maturing of the cotton the leaf-blister mite 

 [Eriophyes gossypii, Banks] was prevalent in the field, but little damage 

 wa.s done by it. Owing to the discovery of Platyedra {Pectinophora) 

 gossypiella (pink bollworm) [R.A.E., A, ix, 99], Ordinance no. 12 of 

 1920 was passed fixing the close season for cotton in St. Kitts for 

 February and ordering all cotton plants to be burned. Regulations 

 were also made for the control of ginneries, fumigation and disinfection 

 of seed for planting and the transport of seed for planting, and all bags 

 and packages used therewith. 



The legislation in force dealing with plant protection up to 31st 

 March 1921 is quoted. 



MoLiNAs (E.). Les Parasites du Rosier, le Ver du Rosier. — La Vie 



Agric. & Riir., Paris, xxi, no. 30, 29th July 1922, pp. 75-76. 



The Buprestid, Coraebus riibi, has been causing serious injury to roses 

 in the south of France in the vicinity of Antibes. Eggs are probably 

 laid at the bifurcation of the branches or on one-year-old stems. 



Immediately after hatching the larvae penetrate the bark and begin 

 their mines, of which they generally make first a descending and then 

 a shorter ascending one. Pupation occurs at the summit of the ascend- 

 ing mine. In very thin stems the ascending mine may be made through 

 the pith. Though onl}^ one larva is usually found in each plant, the 

 damage it does is sufficient to cause death. 



Remedial measures should aim at poisoning the adults by spraying 

 the leaves on which they feed with 1 per cent, lead arsenate about the 

 end of May, when they emerge. The same spray may serve to poison 

 the larvae provided that the plant is well wetted. This treatment must 

 be assisted by clean cultivation. 



Box (H. E.). The White Coffee Leaf-miner {Leucopiera coffeella, 

 Stn.).— Farmers' Jl., Nairobi, iv, no. 26, 29th June 1922. 

 pp. 9-10, & no. 27, 6th July 1922, pp. 19-21, 3 figs. 



Leiicoptera coffeella, Stn. (white coffee leaf-miner) is present in Kenya 

 Colony almost wherever coffee is grown, and, although not a pest of the 

 first importance, it continually weakens the trees. The various stages of 

 this moth are described, and the life-history and habits are discussed 

 [R.A.E. , A, vi, 51, 104]. At Kabete, where the present studies were 

 carried out, there are six generations ; these are apparently continuous 

 throughout the year, each occupying from 50 to 60 days. The remedial 

 measures suggested are the collection of infested leaves when the larvae 

 are abundant, and smoke fires from damp grass, etc., scattered about 

 when the moths are numerous. 



