banana tree is the 4th largest crop in DRC, and it is extremely important to
take care of the tree when it is growing. Nematodes are very small worms that cannot
be seen by the naked eye. They live in the soil and destroy banana tree
are attacked, the entire plant suffers. They become vulnerable and end up not
producing any bananas, or toppling over.
in chemical forms exist, but they are extremely expensive, hard to apply, and
very unsafe for use as they are toxic to humans and the environment.
live in the soil and enter the roots of banana via holes in the root. They feed and
multiply near the roots and cause lesions on the roots that block the nutrient
access to the plant.
plants, like vetiver (Chrysopogon zizanioides), Crotalaria sp.,
Guinea grass (Megathyrsus maximus) or ricin (from the seeds of the
castor oil plant, Ricinus communis) grow quickly in tropical regions.
size of the plants are small compared to their leaves. They act by liberating
chemical compounds from their leaves into the soil. These compounds keep
nematodes away from the banana trees.
Identify nematicidal plant that grow in the area and cut some of the leaves from the plant
Take a handful of cut leaves and place them around the banana
trees as mulch early in the morning or
late at night
After their decomposition, the chemicals from the leaves will be
liberated into the soil
Apply 2 months after the planting of the seeds or seedlings, or
when you start noticing trees being affected by nematodes
Crotalaria is an important nematicidal
plant.Photo byJohn D. Byrd, Mississippi State University, CC BY
Crotalaria is an important nematicide
plant.Photo byRebekah D. Wallace, University of Georgia, CC BY-NC
The recommendations in this factsheet are relevant to:
Democratic Republic of the Congo