ECONOMIC ZOOLOGY ENTOMOLOGY. 1055 



The life cycle is illustrated iiraiiliically and shows tlic time reciuired at Kuox- 

 ville to starve seed ticks that liatcli from e>,'j;s laid by the engorged ticks wliicli 

 drop on Ai»ril 15 and Sei)teml)er 15. "After the ticks dro]) to the jrround on 

 April 15, 10 days will elapse before ef;« laying begins. The ticks will continue 

 November 1.3, a i)eriod of 4 months and 21 days (141 days). . . . For ticks 

 laying until May 28, or 33 days, the eggs will begin hatching on June 2.5, an 

 incubation period of 00 days, and the seed ticks will not all be dead until 

 dropping from the host animal on September 15, the time elapsing before egg 

 laying will be but 4 days and the tick will cease laying on October 15, an egg- 

 laying period of 26 days. The eggs will not hatch, however, until March IT 

 of the following si)ring, or an incubation i)eriod of months (ISO days), iiiul 

 the seed ticks will not all be dead until .Tuly 28, a i)eriod of 4 months and :; 

 days (123 days). . . . Engorged ticks dropping from the host animals during 

 I December, January, and February] will usually freeze to death before laying 

 any eggs." 



The author considers pasture rotation as the most effective method of con- 

 trol under general farm conditions, particularly where a rotation of crops is 

 jiracticed. Examples of two rotation systems reciuiring 4 and 5 years are 

 given as applicable to tick eradication. The feed-lot method is also explaineil. 

 For those sections of Tennessee where the pasture rotation method can not be 

 ai)i)lied. dipping and oiling are recommended. Life histories and habits of the 

 cattle tick and dog tick are compared in diagrammatic and tabular form. 



Another chalcidoid parasite of a tick, L. O. Howard {Caitad. Eiit.. //O 

 (UJOti), Xo. 7, 1)1). 2.J0-2.'il, pg. 1). — A second chalcidoid parasite of a tick is 

 here described as Hunterellus hookeri. This species has been bred from en- 

 gorged nymphs of the brown dog tick. Rliii)icrj)Ji(iJu>< tcxanusi, collected at Cor- 

 pus Christi, Tex. 



Notes on fleas collected on rat and human hosts in San Francisco and 

 elsewhere, R. W. Doank {CUuku}. Eiit., .',0 (1908), Xo. 8, pp. 303. JO', ).— Out of 

 1,300 tleas collected upon rats (Mus norvegicus) in California, t'eratoplnjllHH 

 fasciatus was represented by S03 specimens, Pulcx irritans by 1G3, Lccmop^'iylla 

 cheopis by 139, and Ctenopsyllus musctiU by 118. Out of 684 fleas collected on 

 man f. irritnns was represented by 680.. 



Notes on the hen flea (Xestopsylla gallinacea), G. W. Herrick (Jour. Econ. 

 Knt.. 1 (i!)OH), Xo. 6", pp. 3.').'t-3.')S). — The author reports observing more than 

 325 specimens of X. gnUiiiacca on a single fowl at Agricultural College, Miss. 

 Engorged females were found to deposit all of their eggs on the day ft)ll()wing 

 their [dacement in vials. An average of 3 eggs were deposited by 15 fleas thus 

 isolated, 7 being the maximum number deposited. The eggs were found to 

 hatch within 48 hours after deposition. 



The foul brood of bees and the foul-brood law, (4. W. IIkkrkk and E. E. 

 Srnot.i. {Texan Hta. Kill. Uli, pp. 3-10). — An account of the American and 

 European foul brood with directions for treatment, to which is ai)pended the 

 Texas foul-brood law. 



Calendar for the treatment of plant diseases and insect pests, W. J. Green, 

 A. I). Si:i,itv, and H. A. (Jossako [OIiU, Sla. liul. I!)!), pp. S!)-10:i). — This is a 

 revised edition of Bulletin 147 of the station (B. 8. R., 16. p. 77). Fornuilas 

 are given with directions for the use of insecticides and fungicides. 



Treatment of plant diseases and injurious insects in South Carolina, II. W. 

 Harre and A. F. Conradi (South fUirolinn Stii. liul. I '/ 1 . pp. 3-').i, fig. /). — In 

 this bulletin the authors describe spraying machinery, insecticides, anil fimgi- 

 cides, and their use in conibaling the more importa'it insect enemies and itlant 

 diseases of fruit trees, shrubs, v('g«'tab!( s. and field crojis. 



85670— No. 11— Oy 5 



