Gruppen, R.

Huiting, H.F.

Kruistum, G., van

Qiu, Y.T.

Rozen, K., van

Spoorenberg, P.M.

English

Wageningen Yield 

Yu Tong Qiu, Gijs van Kruistum, Klaas van Rozen, Hilfred 
Huiting, Roelof Gruppen and Piet Spoorenberg 
Pest control in practice:  
the state of the art  
Applied Plant Research, Lelystad 
Presentation outline 
  Introduction 
  Insecticide application  
  Above ground: decision support systems (DSS) 
  Below ground: seed coating  
  Alternative control methods:  
  Barrier  for root flies in vegetables 
  Controlled atmosphere treatment 
  Trapping for monitoring and control 
Introduction 
  Reduction of pesticide use 
  European Union has banned 
dozens of top pesticides.  
  Alternative plant protection 
measures are in urgent need 
  Environmental friendly 
  Applied precisely and better 
targeted 
  Effective  
Control of trips on leek using DSS 
  Crop: leek (cultivar relatively sensitive to T. tabaci) 
  Pests: 9 species of trips 
  Controls:  
  Untreated  
  Famer’s practice 
  Treatments:  
  DSS, Trips Prediction Model (Dacom) 
  Blue sticky trap  
Monitoring with blue sticky traps  
Thrips species trapped 
  Thrips major 
  T. tabaci 
  Other species 
Effects of seed treatment and blue sticky traps 
But, by application of DSS or blue sticky traps 
the number of chemical spray was reduced 
from 10 to 4 or 6 
Seed treatment 
  Reduce the amount of insecticide usage, less 
emission of residues. 
  Precisely targeted, better protection 
  Low residue in end products  
  User friendly 
  Combine multiple pesticides (insecticides/
fungicides/nematocides) and fertilizers 
Seed treatment 
  Insects 
  Foliar attack 
•  Thrips 
•  Aphids 
•  Caterpillars 
  Subsoil attack 
•  Root flies 
•  Carrot fly 
•  Wireworm 
  Slugs & snails 
Seed treatment to control onion fly in leek 
Seed treatment to control thrips in leek 
Insect gauze as barrier to control flies 
  Cabbag fly – Delia radicum 
  Carrot fly – Psila rosae 
  Asparagus fly – Platyparea poeciloptera 
  Onion fly – Delia antiqua 
  Bean fly – Delia platura 
  Monitoring 
using fly 
trapping pole 
Insect gauze as barrier to control flies 
  98% reduction of 
cabbage flies caught on 
yellow sticky trap inside 
the barrier compare with 
outside.  
CA treatment for strawberry mites 
  Strawberry mites 
(Phytonemus pallidus) 
stay in unfolded young 
leaves 
  Length ± 0.25mm  
  Multiply fast: 12d per 
generation at 20∘C 
CA treatment for strawberry mites 
  A CA treatment (1 % O2 
and 50 % CO2 ) at 35°C 
for 48h result in a very 
high mortality (99.8%) of 
the strawberry mites. 
Trapping for monitoring and control 
  Using insect attractant 
baited trapping systems as 
either monitoring system 
and control method.  
  Larvae of click 
beetles, wireworms, 
feed on potato, 
sugar beet or 
gladiolus   
Trapping for monitoring and control 
Trapping for monitoring and control  
  Potato tubers can be used 
to attract wireworms 
  Click beetle traps baited with 
adult pheromones (geranyl 
esters) attract adults 
Thank you! © Wageningen UR 
Gijs van Kruistum 
Klaas van Rozen 
Hilfred Huiting 
Piet Spoorenberg 
Roelof Gruppen 
Albert Ester 


Pest control in practice: the state of the art

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Pest control in practice: the state of the art

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