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  • From: Larry London <london@metalab.unc.edu>
  • To: "permaculture" <permaculture@franklin.oit.unc.edu>
  • Subject: Companion Planting in Africa (fwd)
  • Date: Mon, 31 May 1999 21:44:00 -0400 (EDT)

---------- Forwarded message ----------
Date: Mon, 31 May 1999 09:41:24 -0400
From: Bob MacGregor <rdmacgregor@gov.pe.ca>
To: sanet-mg@ces.ncsu.edu
Subject: Companion Planting in Africa

Companion planting watchers might find the following article interesting
reading....

From: New Scientist, 24 October 1998 p. 25 by Fred Pearce

Farmer's Friend

Grasses that grow wild across Kenya can double yields of maize, Africa's
most important grain crop. Trials in which the grasses were grown
alongside maize have proved so successful that they are about to be
repeated in three other African countries.

The grasses do battle with the stem borer, a caterpillar that decimates
maize yields in millions of fields across eastern and southern Africa.
When planted around the edges of fields, some spieces attract the moths
that lay stem borer eggs, then secrete a gum that kills the caterpillars.
They also attract the borer's worst foe, a parasitic wasp.

Other grasses, if planted between rows of maize, keep the moths away by
giving off an unpleasant smell. The grasses also fend off a second major
threat to maize crops. a weed called Striga that attaches itself to the
plants' roots. Between them, Striga and stem borers typically cause a 40
per cent loss of maize.

Scientists at the research station at Mbita Point on the shores of Lake
Victoria have tested four of these grass species -- Sudan (Sorghum
vulgare), napier (Pennisetum purpureum), silverleaf (Desmodium uncinatum)
and molasses (Melinis minutiflora) -- on 150 Kenyan farms. They proved so
successful that the British-based Gatsby Charitable Foundation, which
funded the research, is extending the programme to Uganda, Tanzania and
Ethiopia.

"These grasses are the same ones that farmers used to grow for fodder,"
says Zeyaur Khan, the project's coordinator.



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