PROCEEDINGS OF THE SECOND ENTOMOLOGICAL MEETING 63 
chewing the tissue all round the woody part; as a result, the whole 
plant withers. 
Would it be possible to irrigate and apply a deterrent in the irriga- Mr. Fletcher. 
tion water ? 
Peas are not irrigated crops. Irrigation with Crude Oil Emulsion Mr. Ghosh. 
and Sanitary Fluid Water was tried but without definite results. When 
the withering plants are earthed up and watered they throw out fresh 
roots from above the chewed up parts and live but are sickly and hardly 
bear. 
Growing peas with other crops has been tried and this year’s experi- - 
ments are rather interesting :— 
1. Pisum sativum was grown alone but the crop was thin. 
A (2. P. sativum was grown intermixed with Vicia faba. 
( 3. P. sativum was grown intermixed with barley. 
U4. P. arvense was grown alone and the crop was thin. 
All plants were destroyed in (1), a few destroyed in (2), none 
destroyed in (3) and (4). 
Were these plots close to one another ? Mr. Andrews. 
Plot (1) was contiguous to (2) and plot (3) was contiguous to (4). Mr. Ghosh. 
A about 70 feet from B. Pea is usually grown as‘a mixed crop. 
What is your experience with this pea-stem Agromyza in Bihar, Mr. Fletcher. 
Mr. Dutt ? 
Where rotation is not practised, the attack is very bad. Such has Mr. H. L. Dutt. 
been the case at Sabour in the Botanical area, where peas are grown 
year after year in the same plot. On the Farm, where rotation 1s 
practised, very few plants are damaged. 
Any further remarks on this insect ? Mr. Fletcher. 
The pea stem fly occurs in Bengal also. Mr. P. C. Sen. 
We will go on to the next insect. Agrotis flammatra sometimes Mr, Fletcher. 
damages pea seedlings in the Punjab. . 
It occurs throughout the Punjab. There is no definite control so Mr. M. M. Lal. 
far. 
B 
We will go on to the leaf-eating insects found on the pea plant :— Mr. Fletcher. 
Plusia orichalcea. 
Prodenia litura. 
Diacrisia obliqua. 
Monolepta signata. 
Hypera medicaginis. 
Plusia orichalcea is not confined to pea but sometimes does consider- 
able damage. We have shown the stages on a new coloured plate which 
is placed onthe table. Spraying and hand-picking may be done in garden 
plots but are not practicable on a field scale. 
