- 33 - 
•■ • ' (87) 
SUR UN PAEASITE NOUVEAU DES PLANTATIONS DB PECHERS DANS 
LA VALL^E m RHONE. Prog. Agr. et Vitic. 77: 69-71. 1922. 
The following forimj.la is given for an insecticide for 
combating Neurotoma ( Lyda , Penphylus ) nemoralis on peach trees: 
Quassia (chips) 1 kg. 
Black soap— r.:r 1.500 kg. 
Water 100 1. 
The chips are boiled for 2 hours in a few liters of water. 
Badly infested peach trees sprayed with this mixture on 
May 14 were foiind to be in very good condition on May 28. 
PAPE, H. (88) 
TOMATENSChKdlINGE. Gartenwelt 1925, nos. 36-37. t-^^stract in 
Rev. Appl. Ent. (A) 14: 99. 1926.] 
Spraying with quassia-soap is recommended for the control 
of the bugs Lygus pabulinus L. and L. pratensis L. , which occur 
on the leaves of tomatoes. 
PARKER, W. B. (89) 
■ QUASSIIN AS A CONTACT INSECTICIDE. U.S. Dept. Agr. Bull. 165. 
8 pp. 1914. 
Experiments which were carried out on the solubility 
of quassiin (from Picrasma excelsa Swz.) in a number of 
Solvents and solutions gave the following results: 
