Ent., xxiii, no. 1, pp. 215-217, 1 ref. Geneva, N.Y., February 1930. rhe following is the authora#39;s abstract : Results are given of two arsa#39; experiments in colonising Macrocentrus ancylivora, Rohw., in e area of new infestation of Cydia ( Laspeyresia) molesta, Busck, in : stern New York. ... The requirements for colony strength in order to have bees which will give good service in pollination jf fruit is emphasised.
|Title||:||The Review of Applied Entomology|