1-1 -1 



/'.vrr i/E. 



[March 1SS4. 



some \cars since, ami wliicli lias jjroved 

 of jjieat value tor freeing the orange 

 groves of the scale insects. 1 allu(l<j to 

 its emulsification with milk and \\ ater, 

 wherel)}' petroleum can he diUiteil to 

 anv suitable strength for insecticide 

 purposes. The emulsion applied hv a 

 brush upon the parts where winter eggs 

 are deposited will destroy them. W'lien 

 diluted, a spia\" of it ovi-r the entire 

 ])hint in the winter season will do no 

 liarm. The winter eggs should be 

 tieated not later than Februarv . The 

 millv-kerosene process permits pelrf)- 

 leinii to be applied by the ordinarv 

 methods for insecticides. Enndsifica- 

 tion with milk is also a recourse to 

 slow and niilden the intense action of 

 the petroleum naphthas w hen placed in 

 the ground. 



Petroleum should be spra\ed over 

 tlie groimd to destrov scattered eggs, 

 and to reach the superficial larvae in the 

 soil, but not. wlicn nn<lihited. so as to 

 flow imdilfused upon the roots. \\ lion 

 gradually disj^ersed above as spra\ and 

 when inserted beneath tlie roots, the 

 ground itself practicallv dilutes ami 

 diffuses the petroleum before it cm 

 reach the roots. The netiier-up\\ard 

 kerosene diffusion process is the oid\ 

 economically practical way, of course, in 

 which the deep application of tiie im- 

 diluted forms of petroleum can lie al- 

 leiTipted with safetv to the phml. I!\ it 

 the cheap, crude article and its lighter 

 form, the naphthas, become available 

 as most valuable agents against tlie pests. 



The nether-kerosene process applies 

 likewise as a treatment against all otlier 

 root insects or subterranean pests, as for 



example, the .\meiican blight apliid 

 \_Scliizoiiei(ra lanii^cra^ the hop root 

 gort\na \^Gortv>ia iiiimaiiis\^ root mag- 

 gots of the cabbage. &c., the strawberry 

 root licetlcs. cicadas, cut-worms, wliite 

 gi ubs. wire worms, nests of ants, &c. 

 Tints it is seen to have a general appli- 

 cation to a wide range of cases hereto- 

 fore not satisfactorily treated. 



Besides tiie comi>ined application of 

 petroleum and the netlier-insertion pro- 

 cess, the latter and the inserters apply in 

 comi)ination with many other insecti- 

 cides which ha\e more or less efficiencv 

 in the cases cited, of wiiicii tlie follow - 

 examples may be speciallv mentioned. 

 \\7.. : rhigolene, gasolene, naplitha. ben- 

 zine, kerosene, crude iietrnlenm, oil of 

 tar. tar water, naphlhalin. p\roiigue- 

 ous acid, soot, creosote, caibolic acid, 

 cres\lic acici. sulphurous aci(b sidpho- 

 cvanide of potassium, bisulphide of 

 carbon, c\anide of potassium, pyre- 

 thruui preparations, he solutions, to- 

 bacco decoction, chips and snufl', water. 

 gas water, liquid fertilizers, vapors. 

 gases or fumes. Tlie relative merits or 

 adxantagcs or disadvantages ot tliese 

 would involve lenglhv discussion wiiicii 

 ma\ U'lW lie post])oned. eacli lias its 

 special adaptation. 



Tlie netlier inserters apph am up- 

 ward acting insecticiile against anv 

 uiuleiground enemies. .Also I iia\e 

 provided certain accessories with which 

 thev in the same manner applv water or 

 liquid manure to saturate the groinul 

 against Phylloxera or tlie other pests, 

 and to fertilize the ground, to stimulate 

 and diet u]) the plant : but tiiese topics 

 will be lulK iiotici-d at a later date. 



