. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. PLATE 11 Pupa of Callopistria floriclensis. showing three aspects, enlarged. instituting vigorous measures of control. The use of a 2% Rhotonon solution, one ounce to four gallons of water, together with the use of light traps, for a period of several months, re- sulted in complete eradication. Pyrethrum sprays were tried in one greenhouse, but were shortly discontinued on account of the unsaleable condition of the plants after application. The methods used were apparently successful as there
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. PLATE 11 Pupa of Callopistria floriclensis. showing three aspects, enlarged. instituting vigorous measures of control. The use of a 2% Rhotonon solution, one ounce to four gallons of water, together with the use of light traps, for a period of several months, re- sulted in complete eradication. Pyrethrum sprays were tried in one greenhouse, but were shortly discontinued on account of the unsaleable condition of the plants after application. The methods used were apparently successful as there were no evi- dences of infestation in 1938 or 1939. With this record, California can now be added to the grow- ing list of states (which includes Illinois, District of Columbia, Georgia, Ohio, Xew York, Indiana, New Jersey and certain prov- inces in Canada) in which outbreaks have occurred. This is of more than ordinary significance in view of the fact that ferneries are established in large numbers out-of-doors in this state, and a general infestation in this climate might lead to serious results. BIBLIOGRAPHY 1 1852âGuenee, Spec. Gen. VI. 192. 2 1857âWalker, Cat. Brit. Mus. Het. 12, 862. 3 1891âButler, Ann. & Mag. Nat. Hist. 8, 75. 4 1908â(Foodpl.) Year 3k. Dept. Agr. p. 578. 5 1909âDavis, .Journ. Econ. Ent. 3, 183. G 1912âDavis, 27th Rep. State Ent. 111. 7 1913âChittenden, Bull. 125, Bur. Ent. U. S. Dept. Agr. â s 1914âHeadlee, New Jersev Ren. Sta. Entom. 353. â¢â ) 1915âWeiss, Can. Ent. 47, 23. 10 1915âWeiss, Ent. News. 26, 141. 11 1915âBaur, Florists Rev. 36, 922, 12. 12 1915â^Van Zwaluwenburg. Porto Rico R. 44. 13 1916âWeiss, Can. Ent. 48, 141. 11 1916âWeiss, New Jersey Bull. 296, 8. 15 1917âHewitt, Rep. Domin. Ent. 11. 10 1917âGibson, Rep. Ent. Soc. Ont. 47, 111. 17 1918âFelt, New York Sta. Rep. 32, 74. IS 1919âWeigand, Florists Rev. 45, 1151, 19. 10 1919âOelschig, Florists Rev. 44, 1137, 19. 20 1930âCompton, 111. Sta. Nat. Hist. Surv. Ent. C.
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