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Report from the Sub-committee on Agriculture

 

 
Table 8.16
Pests in Danish greenhouse crops and the useful organisms that can at present be used to control them – depending on the species of pest, the species of plant and specific cultural practices. It should be noted that each category of pest and useful animal (e.g. aphids and ichneumon) comprise up to several species. In all, there are 46 different useful organisms.
 
CROP PEST BIOLOGICAL CONTROL AGENT
Greenhouses    
Tomatoes Aphids Parasitic wasps, aphid gall midges, lacewing, ladybirds
  Leaf-miner fly Parasitic wasps
  Spider mite Predatory mites, predatory gall midge
  White fly Parasitic wasps, predatory mites
Cucumber Aphids Parasitic wasps, aphid gall midge, lacewing, ladybirds
  Leaf-miner fly Parasitic wasps
  Spider mite Predatory mites,
  Thrips Predatory mites, predatory bugs
  White fly Parasitic wasps
Beans/peppers Aphids Parasitic wasps, aphid gall midges, lacewing, ladybirds
  Spider mite Predatory mites, predatory gall midges
  Thrips Predatory mites, predatory bugs
  White fly Parasitic wasps
Ornamental plants Aphids Parasitic wasps, aphid gall midges, lacewing, ladybirds, predatory bugs, flower fly, insect-pathogenic fungi
  Spider mite Predatory mites, predatory bugs, lacewing, insect-pathogenic fungi
  Thrips Predatory mites, predatory bugs, predatory thrips, insect-pathogenic fungi
  White fly Parasitic wasps, predatory bugs, ladybirds, insect-pathogenic fungi
  Leaf-miner fly Parasitic wasps
  Mite Predatory mites
  Top-shoot mites Predatory mites
  Sciarid fly Nematodes, predatory mites, Bacillus thuringiensis
  Butterflies Predatory bugs, parasitic wasps, Bacillus thuringiensis
  Weevils Nematodes
  Scale-bug complex Parasitic wasps, ladybirds
  Mealy-bug complex Parasitic wasps, ladybirds