经济部中央农业试验所.pdf电子版

目录简介

目录

part i report of first year october 1935--june 1936

introduction

summary

i projects dealing with practical insect control

1 extension work on the use of insecticides

2 application of tree banding for the control of the pine caterpillar

3 the control of vegetable insects

4 the control of horticultural and other insects

5 the control of locusts in pa-kwa-chow

6 training school for the promotion of practical insect control

ii projects dealing with the construction of apparatus for use in china

iii research projects

1 the transplanting and propagation of chinese insecticide plants and the testing of their effectiveness

2 studies on the production of effective tree banding

3 testing of the efficiency of kerosene extract of pyrethrum in relation to the duration of the dipping period

list of tables

table 1 frequency of orders as classified in different groups

table 2 the extension of insecticides: spring 1935--summer 1936

table 3 showing results of the control of water melon insects

table 4 showing results of the control of fruit insects

table 5 showing results of the control of miscellaneous insects

table 6 sprayers sold during the period from october 1935--june 1936

table 7 the distr......