326 



The Pink Boll Worm in Texas. — Agric. News, Barbados, xix. no. 469, 

 17th April 1920,, p. 122. 



It is reported that the difficulties in dealing with the pink boll-worm 

 [Platyedni gossypiella] in Texas continue, and experience has demon- 

 strated that a one-year non-cotton zone is not effective. Although 

 a non-cotton zone was proclaimed for 1918 and thousands of Malvaceous 

 plants other than cotton were examined without result during 1918 

 and 1919, infestation re-appeared in 1919, evidently from cotton seed 

 that had fallen to the groimd in the fields and had escaped removal. 

 In another locahty in Texas where an infestation was found in 1917, 

 a non-cotton, zone was maintained for two years, apparently with 

 perfect success, as no recurrence of the pest has been discovered. 

 Only the most persistent apphcation of thorough methods of cleaning 

 up and constant "^dgilance over a period of several years, even when 

 there are no signs of recurrence of the pest, can. be expected to give 

 satisfactory results. 



The Cowpea Weevil. — Agric. News, Barbados, xix, no. 469, 17th April 

 1920, p. 122. 



Chalcodermus aeneus (cowpea weevil) is responsible for a good deal 

 of damage in St. Vincent, and apparently has not previously been 

 recorded there. Examples from St. Vincent are smaller than those 

 occurring in the United States and may prove to be a distinct but 

 closely related species. The larvae feed inside the growing peas, on 

 which the eggs have been laid. It was found that by planting a 

 variety of cowpea that continuously blooms and fruits over a consider- 

 able period, the wee\al can be trapped and effectually controlled by 

 collecting all the pods on these cowpeas at intervals of three days for 

 a period of 5 or 6 weeks. 



Marchal ( — ) & PouTiERS ( — ). La Fourmi d' Argentine. — La Vie Agric. 

 et Rur., Paris, x\n, no. 20, loth May 1920, p. 351. 



Attention is dra^\^l to the appearance of the Argentine ant, Irido- 

 myrmex humilis, in the vicinity of Toulon and Cannes, and the danger of 

 further spread is emphasised. It was probably imported with plants 

 from South America. 



Faes (H.). Essais et Traitements effectues dans le Vignoble vaudois 

 contre le Ver de la Vigne (Cochylis) en 1913. — Station Viticole, 

 Lausanne, 1919, 12 jjp. [Received 26th May 1920.] 



During 1918 the vine moth [Clysia ambiguella] caused less damage 

 in the vineyards of the Swiss canton of Vaud than during the preceding 

 years. 



Details are given of the various locaHties inspected. The larvae 

 of the first generation appeared towards the end of May, those of the 

 second about the end of July. A 9 per cent, solution of locally grow n 

 pyrethrum and soap again proved the most effective [R.A.E., A, v, 

 389] measure. General recommendations are given for dealing with 

 the first and second generations with titrated nicotine. 



