PART IN. 
(¢) Wimp Foop Prants. 
It is recommended that the following conclusion be adopted by 
the General Conference :— 
The study of the wild food-plants of the Sudan Boll worm is 
a matter of great importance and one that calls for further 
thorough investigation. In Nyasaland, one record shows it as 
feeding in Thespesia; and in South Africa a record relates to wild 
cotton. Mr. Hardenberg has suggested that the larvae may feed 
in the roots of the sweet thorn tree. 
(d) . CoNTROL. 
This is dealt with under the following section. 
SECTION IV. 
CONTROL OF BOLL WORMS OTHER THAN PINK BOLL WORM 
The matter of the economic control of other Boll Worms than 
the Pink Boll Worm, such as the Sudan, the American and Spiny 
Boll Worms was fully discussed in the light of varied experience, and 
the following conclusion was arrived at:— 
Although a great deal of experimental and investigational 
work has been done on Sudan, American, and Spiny Boll Worms, 
this Section is not in a position to make any general recommenda- 
tion. No economic means of control have yet been devised, but 
we are of opinion that further investigations are desirable and 
necessary. 
(Sgd.) CLAUDE FULLER, 
Chairman, Entomological and Mycological Section. 
Nairobi, August 23rd, 1926. 
The Cotton, Entomological and Mycological Sections met under 
the Chairmanship of Mr. Fuller, who read the above report. 
COTTON STAINERS.* 
Mr. MILLIGAN wished to make it very clear that the injury 
from stainers was very serious, and that real co-operation with 
Entomologists was not .only desirable but essential. He indicated 
that those members of the Cotton Section, who had facilities to do so, 
were willing to help in every way possible, if he could have some 
general idea of what was required to be done. 
A discussion took place on the Chairman’s report; and, in 
connection with cotton stainers, the following conclusion was 
accepted : — 
In view of the immense importance of cotton staining and 
internal boll-rots to the future development of cotton growing in 
Africa, this Conference recommends : 
(1) That thorough investigations should be undertaken into 
the problem, with special reference to the possible role 
played, in transmission, by Dysdercus and other suctorial 
insects. 
* See also page 172. 
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