58 



Mr. Weed said that he had experimented in that direction and recommended the 

 application of pure kerosene upon the first brood of bugs upon Mustard. 



Mr. Bronk had traced an attack of this Cabbage Bug from Kale to Cabbage, the Kale 

 having been destroyed and but three plants accidentally left. 



Mr. Osborn said that Mr. Gillette conducted his kerosene-pyrethrum experiments 

 nearly a year before his results were published, awaiting confirmative evidence. 



Mr. Riley said that the great efficacy claimed for these combinations of Mr. Menke and 

 Mr. Gillette will not be borne out by further experiment. Against the Boll Worm his agents 

 have not found them thorough antidotes. 



The association then adjourned. 



AUGUST 18, MORNING SESSION. 



The Association was called to order by President Fletcher at y. 30 a.m. Thirty-four 

 persons were present. The minutes of Monday's meeting were read and approved. On 

 motion, a nominating committee, consisting of Messrs. Howard, Weed, and Bruner, was 

 appointed. 



WORK OF THE SEASON IN MISSISSIPPI. 



BY H. E. WEED, AGRICULTURAL COLLEGE, MISSISSIPPL 



[Secretary's abstract] 



There has been no one great outbreak the present season. Last year stock was injured 

 by the Screw Worm quite extensively, but the planters are now treating with carbolic acid 

 washes and are lessening the damage. The Cotton Leaf-worm and the Boll Worm are the 

 principal insect enemies of the State. The former is only just appearing and will not be des- 

 tructive. The Boll Worm was injurious last fall owing to wet 

 weather. jEgeria pyri occurs abundantly in apple trees, but not in 

 pear. Hippodamia convergens (Fig. 14) he has proven to be an inju- 

 rious insect, as he has seen it feeding upon the leaves of cabbage. 

 Moreover, he has poisoned with Paris green and killed the beetles. 

 The Chinch Bug occurs in the western part of the State on corn. The 

 cabhage crop is almort invariably destroyed by the Harlequin Bug 

 and other insects The Plum Curculio is very abundant upon peaches. 

 Cattle Ticks {Ixodes bovis) are very abundant in the southern part of the State. The 

 emedy in use is to feed the cattle equal parts of sulphur and salt continuously. 



The question of the action of the sulphur was brought up by Mr. Fletcher and Mr. 

 Marlatt, and Dr. Marx stated that the sulphur was eliminated by the sudoriferous glands, 

 thus bringing it into contact with the ticks. 



Mr. Smith considered Mr. Weed's experiments with Paris green against Hippodamia 

 convergens not conclusive as indicating their phytophagic habit, as the beetles might 

 have been feeding upon plant lice and thus have been poisoned by the Paris green. 



Mr. Popenoe stated that he had found Hippodamia feeding upon rust spores. 



Mr. Weed described the treatment of Cotton for the Cotton Worm by means of a 

 long pole carried across a mule's back with a bag of Paris green hanging to each end 

 of the pole. In this way four rows of Cotton can be treated at once with undiluted 

 Paris green. 



Mr. Webster stated that in Louisiana four sacks were thus strung upon a 

 single pole. 



