436 



The Boll Weevil. — 16th Ann. Rcpi. 1919, S. Carolina Commiss. Agric. 

 Comm. & Ind., Columbia, 1920, pp. 265-288. [Received" 9th 

 July 1921.] 



The results of dusting as a remedy against the boll wee\'il [AjifJio- 

 noinus grancfis] are briefly discussed ; no delinite recommendation in 

 favour of this method is considered possible at present. It is pointed 

 out that the general practices advocated against the pest are practically 

 the same as those demanded in good farming. The acreage planted 

 with peanuts in South Carolina is increasing, and it is thought that this 

 crop might profitably be substituted for cotton in many districts. 



Professor A. F. Conradi is of opinion that the boll weevil will in 

 future be a permanent limiting factor in cotton production in the 

 State. He considers that the poisoning method warrants a thorough 

 investigation of its merits, and thinks that early failures were due to 

 the crude state of the poisons and the apparatus for appl3'ing them. 

 Mr. Swinton Whaley's advdce, after the severe infestation of 1919, 

 was to resort to diversified methods of farming, cultivating cotton 

 only as a surplus crop ; to use the intensive system and poison with 

 calcium arsenate. 



Boll Weevil. — 17th Ann. Rrpt. 1920, S. Carolina Commiss. Agric. 



Comm. & Ind., Columbia, 1921, pp. 130-138. [Received 9th 



July 1921.] 



The menace of infestation by the boll weevil [Anthonomus grandis] 



in South Carolina in 1920 was so clearly foreseen [see preceding paper], 



and farmers so far protected themselves by diversified agriculture, 



that the calamity was much less than had been anticipated ; in fact, 



careful farmers in the boll weevil area were more prosperous than those 



in parts of the State remote from the infested areas, who gave their 



entire land to cotton-growing. The various agricultural practices 



adopted by the different counties of South Carolina in this respect 



are reviewed b\" \'arious authors 



RuGGLEs (A. G.). Report of the State Entomologist for the Year 

 ending 1st December 1920. — IStli Rcpt. Minnesota State Ent., 

 Agric. Expt. Sta., Univ. Earm, St. Paul, T8th June 1921, 

 pp. 3-12. 



The inspection of nurseries was extended during the 3'ear under 

 review to include a large number of orchards, particularly those of 

 commercial size. During 1919 narcissus bulbs from Holland were 

 found to be infested with Merodon cquestris, F., among which larvae of 

 Eumerus strigatus. Fall, (lunate onion fly) were also found. 



The usual insect pests were more or less troublesome during the year. 

 Those recorded for the first time from Minnesota as causing serious 

 injury are Rhagoletis pomonella, Walsh, which occurred practically 

 over "the whole of the southern half of the State on the common x-arieties 

 of apjile, Crataegus and the wolfberry {Symphiocarpus occidentalis), 

 and Crioceris asparagi, L. (asparagus beetle). During 1919 there was 

 a serious outbreak of the army worm [Cirphis iinipuncta], the principal 

 damage being caused to oats ; but fla.x, maize and wheat were also 

 attacked. Tlie onion maggcjt \ Hylemyia antiqua] and the onion 

 thrips [Thrips tabaci] were also in e\'idence. 



Experiments with orchard sjM-aying show that lead arsenate and 

 calcium arsenate are equally effecti^•e against codling moth [Cydia 

 pomonella] or leaf-eating msects. 



