By Bob Aston
The two days’ workshop brought together more than 70 farmers drawn from Ol-Moran Ward who had come together to discuss and share best practices on how to enhance farmers production skills on Tree Tomato.
Tree tomato is moderately
resistant to pests although minimizing spread of pests and diseases can ensure
better returns. Speaking during a Tree Tomato Value Chain Workshop at Sipili Catholic
Church Hall, Laikipia West Sub County on September 23-24, 2015, Mrs. Elcy
Kigano, Ol-Moran Ward Agribusiness officer said that adopting an integrated
pest and disease management could ensure farmers minimize losses due to pest
and disease infestation.
“It is always possible to
reduce the progress of diseases and keep them at an acceptable level as it is
not possible to completely eradicate diseases,” said Mrs. Kigano.
A farmer examining her tree tomato fruits |
The two days’ workshop brought together more than 70 farmers drawn from Ol-Moran Ward who had come together to discuss and share best practices on how to enhance farmers production skills on Tree Tomato.
The Arid Lands Information Network (ALIN) through Ng’arua Maarifa Centre organized
the workshop in collaboration with Kilimo Biashara Promoters and the Ministry
of Agriculture, Livestock and Fisheries (MOALF).
She noted that the fast
growing tree tomato or “matunda ya damu” in Kiswahili, prefers sub-tropical
climate. She took farmers through control of tree tomato pests and diseases.
Tree tomato pests
Fruit flies are one of
the most serious pests in Kenya. They feed on the fruits and other parts of
tree tomato. They also lay eggs in fruits. Control is through field sanitation,
quarantine and baiting by use of delude mixture of Naturalure with water.
Nematodes are a big
problem on sandy soils. They cause serious damage on young trees and can be
vectors of viruses. They lead to stunted growth and swelling or knot on roots.
Prevention is by removing affected plants, soil fumigation, or soil
solarization, keeping the field weed free, planting marigold beside the rows to
reduce nematode numbers, practicing crop rotation, rouging, and use of
nematicide or extract from neem cake.
Tree tomato worm feeds on
the fruits and cause heavy losses. Control is by rigorous spraying and sanitary
measures. Biological control is also essential. Green Aphids sac saps on the
leaves and flowers. Chemical control can prevent spread of the pest.
Tree tomato diseases
Farmers being taken through tree tomato pests and diseases |
A fungus Erysiphe
Polygani causes powdery mildew and it results in serious defoliation. A white
powdery mould appears on the upper surface of the leaves. The tissue beneath
the affected plant becomes reddish brown while leaves turn yellow and
eventually fall off. Control is through removing and destroying infected plant
parts, spraying 10 percent cow milk, and improving air circulation by thinning
and pruning.
Sclerelotinia disease
causes black lesions, which girdle stems and cause terminal wilting. Field
hygiene and use of fungicide such as Ridomi, Daconil, and Ortiva are ideal ways
of controlling the disease.
Ascochyta disease appears
as small, round black dead areas on leaves especially mature ones. Black
lesions, which girdle stems and cause terminal wilting, are some
characteristics of the disease. Field hygiene and use of fungicide such as
Thiovit, Ridomil, and Ortiva are ideal ways of controlling the disease.
Tree tomato mosaic virus
causes stunted growth, as well as pale mottling on leaves and sometimes fruits.
Pulling up and destroying infected plants can prevent spread of the disease.
The farmers were
addressing various interventions in Tree Tomato Value Chain that included crop
risk mitigation, post-harvest handling, local value addition, linkages to
markets, aggregation, and value chain linkages.