42 BULLETIN 1201, IT. S. DEPARTMENT OF AGRICULTURE. 
Lycoperaicum csculcntum Mill. Solaxaceae. Synonyms: L. Vyoop&rsicum 
Karst, sola tin in lycoperaicum L. Tomato. South America, cultivated every- 
where. 
Von Mueller (91, p. 509) says: "Tomato foliage may be placed 
round fruit trees, like the equally poisonous potato leaves, to prevent 
the access of insects, and an infusion of the herb serves also as an 
insecticide for syringing, as first adopted by Mr. Sircy." 
Makaida (55) claims to have determined in 1914 that tomatoes. 
planted near cucumbers, melons, and watermelons, protect these 
plants against aphids. 
Schreiber (80) and Vostrikov (92) recommend the growing of 
tomatoes near cabbage beds to drive away cabbage butterflies, and 
they suggest the use of tomato extracts to control the cabbage cater- 
pillars. Schreiber (79) suggests the use of a decoction of tomatoes 
against the pests of raspberries and dewberries. 
Schreiber (81) found a concentrated extract of tomatoes very 
effective against aphids and various other market-garden pests, but 
Goriainov (29) , also testing the decoctions of various plants against 
insects in Russia, carried on his experiments at the Entomological 
Bureau of Riazan and determined that a decoction of tomatoes gave 
only insignificant results against Malacosoma neiistria, 
Crouzel (20) says: " It is stated that an Italian vine grower, hav- 
ing planted tomatoes between the rows of vines in a vineyard badly 
infested with Phylloxera, was gratified to note fresh, healthy shoots 
break forth from the withered stocks, while numbers of dead Phyl- 
loxera insects were found around the roots of the tomato plants." 
The writers' results are given on page 8. 
Lycopodium complanatum L. Lycopodiaceae. Grouiulcedar. Europe, Asia, 
and North America. 
Williams (91^, p. 924) reports that the decoction kills lice. 
Lycopodium selago L. Fir clubmoss. Northern hemisphere. 
Greshoff (31, p. 165) lists it as an insecticide. 
Lysimachia nummularia L. Primulaceae. Moneywort. Europe, natural- 
ized in the United States. 
Porcher (68, p. 509) reports that the leaves and flowers, steeped 
in oil. have the power of destroying insects and worms which infest 
Madhuca sp. Sapotaceae. Synonyms : Bassia, Illipe. East Indies. 
The writers' results are given on page 23. 
Marrnbinm vulgare L. Menthaceae. Common hoarhound. Europe and 
Asia, naturalized in the United States. 
Riley (71, p. 185) reports that the decoction and alcoholic extract 
had no effect on cotton caterpillars. 
Matricaria chamomilla L. ASTEBACEAE. Synonyms : Chrysanthemum chamo- 
milla Bernh., Chamomilla vulgaris S. F. Gray, Chamomilla officinalis Koch. 
German false-camomile. Europe and Asia, naturalized in the United States. 
Schenck (82) reports that the flower heads of the common camo- 
mile have an action similar to that of genuine Persian insect powder. 
Gieseler (26) says that heads of this plant exert an effect on in- 
sects simiiar to that exerted by pyrethrum. 
