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

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Incidence, distribution and characteristics of major tomato leaf curl and mosaic virus diseases 120
Figure 5.1: Insect traps of yellow and blue plastic material cut out of locally used containers: (A) yellow traps; and (B) blue traps, both of which were cut from the
top of a 5 litre plastic jerry can, and with total inner surface area of 0.015 m ² each, which was smeared with Vaseline, and used at corners of treatment plots to trap
flying whiteflies. The second set of (C) yellow traps and (D) blue traps were cut from the bottom of a 5 litre plastic jerry can. Each trap had a total surface area of
0.075 m ². They were smeared with Vaseline, and were located in every centre of treatment plots to trap whiteflies.
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1 m