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טכניקה למסך בוק האמריקאי להתנגדות לחרקי האשור Scale (<em> Fagisuga Cryptococcus</em> לינד.)
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Chapters
- 00:05Title
- 01:42Collection of Beech Scale Eggs
- 04:06Egg Viability Assays
- 05:32Scale Resistance Screening of Large Mature Beech Trees in the Field
- 08:18Scale Resistance Screening of Potted Seedlings or Grafts
- 10:06Data Collection
- 10:51Results: Susceptibility and Resistance of Beech Trees to Artificial Infestation
- 12:04Conclusion
