They mainly attack cereals like maize, millet, sorghum, etc. with the possibility of reducing plantations to a field of ruin after their passage, thus striking a blow to the 2030 objective of the FAO for the attainment of a world without hunger.
The United Nations is since engaged in this struggle and researches are being conducted to reduce the nuisance capacity of fall armyworms.
A new layer is added to this fight. For, Young researchers and experts from Benin, Cameroon, Ghana, Kenya, Nigeria and Togo, supported by the Deutscher Akademische Austauschdienst (DAAD) gathered in a workshop in Lome for three days have also identified other methods of controlling fall armyworm in Africa.
On Tuesday, the first day, they noted that apart from chemical control based on the use of pesticides, there are other biological methods able to fight these insects.
"We opted for an integrated control combining different methods. This formula will counter the fall armyworm that attacks mainly corn, millet, sorghum, market gardening and can cause damage up to 100% of yield losses, "said Koffi DJIMA, Entomologist.
Mr DJIMA agrees with the FAO that fall armyworm, that devastates crops in Africa and elsewhere, can be combated by some natural techniques.
He quoted, for example, the push-pull method developed by the Indian entomologist, Zeyaur R. Khan in Kenya, based on a biological approach of hunting insect pests from a main crop and attracting them to the edge of the field through other plants or crops.
"The crops that are mixed with the corn repel the insect and the ones on the edge attract the insect, so instead of the adult laying eggs on the corn, it lays eggs on the crop that is in the border and this culture can significantly reduce the hatching of eggs ", illustrated the entomologist DJIMA.
After identifying and adopting these different methods, the participants will not keep the acquisitions for themselves. "We will draft projects to be submitted to national and international organizations in our different countries to help small producers in the fight against these pests," he added.
The next step is the dissemination of all these acquisitions nearby the peasants.