RHS Level 2 Pests and diseases activity answers

1,998 views

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,998
On SlideShare
0
From Embeds
0
Number of Embeds
16
Actions
Shares
0
Downloads
57
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

RHS Level 2 Pests and diseases activity answers

  1. 1. RHS Level 2 Certificate Pests and Diseases Activity – Identify the problem and the available controls.
  2. 2. Common name and controls? <ul><li>Aphid </li></ul><ul><li>Controls – fatty acid spray (contact); imidacloprid (systemic); Aphidoletes aphidzyma (biological) </li></ul>
  3. 3. Common name and controls? <ul><li>Vine Weevil (adult) </li></ul><ul><li>Controls – traps (sticky bands on pots), imidacloprid or thiacloprid (systemic) </li></ul><ul><li>For larvae – Steinanerma krausei (biological);imidacloprid or thiacloprid (systemic) </li></ul>
  4. 4. Common name and controls? <ul><li>Common Slug </li></ul><ul><li>Controls – metaldehyde or ferrous sulphate (chemical); Phasmarhabditis hermaphrodita (biological); baited traps (cultural) </li></ul>
  5. 5. Common name and controls? <ul><li>Powdery Mildew </li></ul><ul><li>Gather up and burn debris (cultural); myclobutanil (systemic fungicide);avoid water stress (cultural) </li></ul>
  6. 6. Common name and controls? <ul><li>Downy mildew (note growth is on underside) </li></ul><ul><li>No chemical control; resistant varieties (cultural); remove and burn affected plants (cultural). </li></ul>
  7. 7. Common name and controls? <ul><li>Honey fungus </li></ul><ul><li>Remove all affected plants and dead wood (cultural); butyl rubber barriers (cultural); grow resistant plants (cultural). No chemical or biological controls. </li></ul>
  8. 8. Common name and controls? <ul><li>‘ Red Thread’ - fungal disease in lawns. </li></ul><ul><li>Controls – no chemical for the amateur; scarify to remove thatch where spores overwinter (cultural); nitrogenous feed (cultural); improve drainage (cultural). </li></ul>

×