Whiteflies biological control

There are some biological controls that work wonderfully. The parasitic wasp Encarsia formosa is very effective against whitefly. These tiny wasps are barely visible to the eye. They lay their eggs inside developing whitefly pupa, so one of their young hatches out instead of the whitefly. For aphids, try ladybugs or Aphidoletes aphidimyza (see source on page 35 for these). 

Biological Controls Nature s Control P. O. Box 35 Medford, OR 97501 541-899-8318 0.50 Catalog Encarsia formosa (whitefly parasite) Aphidoletes aphidimyza (aphid predator) Yellow Sticky Traps (whitefly control)... 

Compounds of types 9-11 provide good control of a broad range of commercially important pests, such as aphids, whiteflies, thrips, rice hoppers, Colorado potato beetle, flea beetles, wireworms, leaf miners as well as some lepidopterous species. The influence of the nitroimino-heterocycle on the biological activity has been studied in the greenhouse with compounds 14—16 [22]. These bioassays revealed... 

Figure 7 shows the result of efficacy test using tape formulations with different widths. The tapes with 50 mm and 100 mm width showed better control than 25 mm tape. This result suggests that the area of yellow tape plays an inq)ortant role in whitefly attraction affecting biological efficacy against whitefiy. This result is consistent with the result shown in Figure 4. 

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