Proceedings of the South & East African combined agricultural, cotton, entomological and mycological conference held at Nairobi, August, 1926

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Multivolume work

Identifikator:: 1818395479

Document type:: Multivolume work

Author:: Marx, Karl http://d-nb.info/gnd/118578537; Engels, Friedrich http://d-nb.info/gnd/118530380

Title:: Historisch-kritische Gesamtausgabe

Place of publication:: Frankfurt a.M.

Publisher:: Marx-Engels-Archiv

Year of publication:: 1927-

Collection:: Economics Books

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Volume

Identifikator:: 1818396394

URN:: urn:nbn:de:zbw-retromon-205987

Document type:: Volume

Author:: Marx, Karl http://d-nb.info/gnd/118578537; Engels, Friedrich http://d-nb.info/gnd/118530380

Title:: Der Briefwechsel zwischen Marx und Engels 1861-1867 / herausgegeben von D. Rjazanov

Volume count:: Abt. 3, Briefwechsel, Bd. 3

Place of publication:: Berlin

Publisher:: Marx-Engels-Verlag G. M. B. H.

Year of publication:: 1930

Scope:: XXIII, 488 Seiten

Digitisation:: 2022

Collection:: Economics Books

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Chapter

Document type:: Multivolume work

Structure type:: Chapter

Title:: 1867

Collection:: Economics Books

PART TV. season than fields that had not been sprayed. This was due, probably, to the fact that many of the predatory insects had been destroyed. Jn iveply “No Mr. © Fuller, he stated that he thought that if they could get rid of the ant they would be able to get rid of the mealy bug also. He asked Mr. Kirkpatrick to explain his remarks in regard to the incidence of mealy bug, as he had stated that it was more prevalent in the lower districts which are more humid, but that it also multiplied in the months of October and March, when the rainy seasons commence. Mr. KIRKPATRICK thought that the controlling factor at high altitudes was not humidity but cold. There were also other controlling factors. For instance, Pheidole breeds faster and is more active during the rainy season, and also the mealy bug breeds more rapidly when feeding on the young leaves and berries than on the old leaves and the mature berries. Mr. ANDERSON agreed entirely with Mr. Kirkpatrick's opinion in regard to the control of the mealy bug. It was agreed: — That much more work should be done by entomologists in regard to the Pheidole ant, and that the question of baits and the destruction of nests is worthy of close investigation. As this ant was of great importance in Kenya, it was recommended that a thorough investigation should be undertaken in Kenya. A discussion then took place in regard to Stephanoderes hamper,” and the possibility of preventing the spread of this pest from Uganda to Kenya; and it was agreed to recommend : — That the entomologists in the two territories should meet and discuss the question after visiting the coffee areas to the east and west of Mount Elgon. LYCIDOCORIS MIMETICUS—A POTENTIAL PEST OF COFFEE Mr. HARGREAVES read the following paper (referred to in the Agenda as T.C.(C)E. & M.5):— Although this bug in Uganda has not been responsible for much damage to coffee, it is of considerable importance owing to the sericus nature of the damage of which it is capable under favourable conditions. The insect was first recorded on coffee in Uganda during 1916 and was again noticed on two other estates during 1917. In each instance, judging from the meagre information available, the pest was of minor importance. From 1920 until early 1925 L. mimeticus was noticed only on coffee growing in shade so dense that little or no crop could be produced. In 1925, however, an attack on unshaded coffee came to my notice; it occurred on a small portion of an estate which had previously produced very little crop and it seemed that the insect was favoured by some condition of the soil. More recently, small outbreaks have been noticed on unshaded coffee and on trees lightly shaded by Para rubber. + See also page 64. 106

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