Desert locusts threaten crops
Crop-threatening desert locusts have been
detected in Yemen for the first time this year, while small
swarms continue to gather in the summer breeding areas of
the Sahel in West Africa, warns FAO.
Despite control operations in Yemen, unusually good rains
led to breeding in the interior. FAO's latest
Bulletin forecasts that small swarms are expected to
form and move toward the Red Sea during September as the
area becomes drier.
Control operations continued in August against immature
infestations in Algeria. But some escaped, forming swarms,
many of which have now arrived in the Sahel.
Some swarms have reached southern Mauritania and laid
eggs that have already hatched. And here, says FAO, local
subsistence crops of millet and sorghum, which are coming
up, could be at risk. Infestations have recently shifted
from the southeast regions to the southwest.
In neighbouring Mali and the Niger, low densities of
solitary adults were present in early August.
Sightings of adult desert locusts also increased along
the Indo-Pakistan border, where conditions may lead to the
formation of small swarms in the coming months.
10 September 1996
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