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Incidence, Distribution and Characteristics of Major Tomato Leaf ...

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<strong>Incidence</strong>, distribution <strong>and</strong> characteristics <strong>of</strong> major tomato leaf curl <strong>and</strong> mosaic virus diseases 121<br />

A B<br />

Figure 5.2: The Kubwa Trap, which was developed from a combination <strong>of</strong> a plastic basin <strong>and</strong> a translucent bucket, is a new sampling tool made to establish number<br />

<strong>of</strong> whiteflies present on individual tomato plants per plot. The trap has the inner surface area <strong>of</strong> the translucent part smeared with Vaseline, so that as trapped<br />

whiteflies fly towards the light, they stick onto the translucent bucket walls. Figure (A) first design without transparent section; B) improved design with transparent<br />

upper part

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