96 



Section 3 provides for the control of importation and exportation 

 of plants (including parts or products of plants) or other articles 

 likely to spread pests or diseases. The right of search, seizure, and 

 detention is granted as for Customs purposes. 



Section 4 provides for the control within the territory under various 

 headings, regulating and restricting movement of plants, regulating 

 and restricting areas of cultivation, reporting occurrence and trans- 

 mission of specimens of pests, regulating methods of cultivation and 

 prescribing measures for general prevention and control, nursery 

 inspection, certification, and sale of plants generally. 



Amendment to the Cotton Ordinance, 1930 (No. 13 of 1920).— Dar-es- 

 Salaam, Tanganyika Territory, 21st October 1921. 



Under this amendment, power is added to the cotton ordinance 

 of 1920 to prescribe cotton quarantine areas in which Government 

 fumigated seed only may be planted, and to seize and destroy infested 

 seed that is unsuitable for planting. 



Ballou (H. a.). Cotton Crops and Cotton Pests. — Agric. News, 

 Barbados, xx, no. 511, 26th November 1921, pp. 378-379. 



It is said that the shortage in the American cotton crop in 1921 

 amounts to about 7,000,000 bales, of which some 25 per cent, is directly 

 attributable to the boll weevil, Anthonomus grandis. The Egyptian 

 crop is said to be a very poor one, Platyedra {Pectinophora) gossypiella 

 (pink boUworm) having been more troublesome than in any year 

 since 1912, mainly owing to large quantities of seed cotton being held 

 over from the previous year. 



In the West Indies, where P. gossypiella is now present for the 

 second season, it seems that fairly satisfactory cotton crops can be 

 produced, if the necessary remedial measures are thoroughly carried 

 out [R.A.E., A, ix, 99, etc.]. Cotton-stainers [Dysdercus spp.] are 

 serious pests, largely owing to the internal boll disease that develops 

 in their punctures. 



The severity of the attacks of A. grandis is greatly influenced by 

 the weather. In Mexico, cotton can be profitably grown in certain 

 dry areas, but in the more humid districts that encourage the develop- 

 ment of the weevil, cotton-growing has to be abandoned. In the 

 United States, a very severe winter followed by a hot dry summer 

 would result in only slight infestation and a better crop, while the 

 reverse conditions are likely to result in severe infestation. 



The effect of rainfall on the crop as a result of its influence on insects 

 requires much study in the West Indies. P. gossypiella also is un- 

 doubtedly greatly affected by climatic conditions in various parts of the 

 world, and these should be more deeply studied. In India, for example, 

 where this moth is indigenous, it has never been reported as a serious 

 pest. 



WoLCOTT (G. N.). U.S. Bur. Ent. The Minor Sugar-cane Insects of 

 Porto Rico. — //. Dept. Agric. Porto Rico, San Juan, v, no, 2, 

 April 1921, 46 pp., 19 figs. [Received 22nd December 1921.] 



The minor sugar-cane pests of Porto Rico are reviewed, chiefly 

 from the point of view of the connection that probably exists between 

 some of them and the rapid spread of mosaic disease in the Island. 



