- 464 - 
BRITTON, rj. E., and CLINTON, G. p. (2009) 
1921. SPRAY CALENDAR. Conn. Agr. Expt. Sta. Bull. 224, pp. 67-110. 
Under "Directions for preparing insecticides and fungicides" 
the following is said regarding nicotine solution: "1/2 - 3/4 pt . 
in 50 gal. water*. Dissolve a 1-inch cube of laundry soap and add 
for a spreader. Several solutions are now sold containing 40^ or 
more of nicotine. Excellent for killing aphids and other sucking 
insects." Nicotine is recommended for the control of leafhoppers, 
tarnished plant hug and green and rosy aphids on apple, cahhage aphid, 
cherry aphid, currant aphid, 4-lined leaf bug and scurfy scale on cu- 
cumbers, cyclamen leafmite, euonymus scale, hemispherical scale on 
fern, aphid on lily, woolly maple leaf-scale, melon aphid, maple aphids 
nasturtium aphid, onion thrips, scales on palm, pear psylla, pear thrij 
false tarnished plant bug, red aphids on phlox, plum aphids, aphids- on 
poppy, rhododendron lace hug, rose slug, leafhopper, rose scale and 
aphid on raspberry, leaf mites on snapdragon, aphids on spiraea, spruce 
gall aphid, aphids on snowball, strawberry root aphid, strawberry white 
fly, and aphids on willow. 
ANONYMOUS (2010) 
1922. EL JUGO DEL TABACO COMO INSSCTICIDA. Inform. Agr. [Madrid] 
12(277): 495-496. 
In Spain the following mixtures are recommended for spraying: 
8 1. of tobacco juice (20 percent nicotine), 2 kg. copper sulphate, 
4 kg. lime, and 100 1. water; or 8 1 . tobacco juice, 500 g. calcium 
oxichloride, and 100 1. water. 
BRITTON, T7. E., 2APPE, M. P., and STODDARD, E. M. (2011) 
1922. EXPERIMENTS IN DUSTING- VERSUS SPRAYING ON APPLES AND PEACHES 
IN CONNECTICUT IN 1921. Conn. Agr. Expt. Sta. Bull. 235, 'pp. 209-22* 
[Abstract in Rev. Ap?l . Exit. (A) 10: 335. 1922.] 
The dusts used included sulphur- 1 e ad-n ic o t ine . The liquid spray 
contained liquid lime sulphur, lead arsenate and nicotine sulphate. In 
the apple orchards the chief pests were codling moth, plum curculio, 
apple maggot, false apple redbug and aphids as well as various chewing 
insects. In nearly all cases the best apples were obtained from the 
spra.yed plots. 
MELANDER, A. L. (2012) 
1922. DIVISION OF ENTOMOLOGY. 32d Ann. Rept. Washington Agr. Expt. 
Sta. 1921-1922. Bull. 175, pp. 2-1-25. [Abstract in Rev. Appl .Ent . 
(A) 12: 238-239. 1924.] 
Treatment against subterranean insects was tried with ground 
tobacco, nicotine solution, calcium cyanide, and o*her materials, but 
in no case were any long-range effects observed, dead insects being 
found only within a foot or so of the point of a.dministra,tion. 
