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Kenyan food production and grazing land is under threat from a huge desert locust invasion. The insects are currently in two counties in northern Kenya and are now spreading to other Kenyan regions including Meru, Laikipia, and Rift Valley. The government has yet to quantify losses but past attacks have caused harvest losses of up to 70%.
Desert locusts are considered to be the most dangerous of all migratory pests because they can eventually develop wings and form a cohesive swarm which can cross continents and seas. They have the ability to devour crops from entire farm fields in a single morning. Studies show that large swarms form because of factors including changes to the environment, population structure and behavior.
Desert - Locusts - Yemen—a - Breeding - Djibouti
These desert locusts migrated from Yemen—a traditional breeding area—through Djibouti, Somalia and Ethiopia. The region has had more rainfall than usual which can could have led to this situation. After periods of drought, when vegetation flushes occur in major desert locust breeding areas, rapid population build ups and competition for food can lead to a swarm developing.
To fight these voracious pests, the government of Kenya is using chemical pesticides, often the usual immediate response of African governments to these outbreaks. This was the approach used to curb the spread of the invasive fall armyworm in Kenya, Malawi and Ghana, for instance. But they don't work in the long run.
Pesticides - Chemicals - Pests - Weeds - Use
Pesticides are chemicals used to kill pests—from animal pests to weeds. Their use is growing in many countries in general, including Cameroon, Ethiopia, Ghana, Kenya and Nigeria. In 2017, Nigeria alone spent over US$400 million on these chemicals.
While there are benefits of using pesticides—including directly reducing the incidence of the invading pests—the benefits are short-term: insects can quickly become resistant to them.
Pesticides - Environment - Health - Consumers
Pesticides are also bad for the environment and the health of consumers and...
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