16 August - Disease control

Chrysanthemum white rust: Check for white, cream, brown or pink pustules on leaf undersides along with yellow blotching on top surfaces.

Keep leaves dry and apply Amistar (EAMU 2001-1684) or Bumper 250EC (EAMU 2009-0707) if seen. Protect plants using Karamate Dry Flo Neotec.

Fremontedendron - Apply Fenomenal or Subdue to plants to control aerial dieback on stems.

Bark boring beetles - Pests are attracted to stressed trees. Control adult activity by spraying Dursban WG on to stems.

Powdery mildew - Adding a wetting agent to mixes helps control stubborn disease attacks, especially on roses and trees. But check labels first, not with emulsifiable concentrate types. Consider Cyflamid (EAMU 2007-0512), Corbel or Folicur on outdoor tree crops.

Apple and pear sucker - Control pests with Dimilin Flo, Hallmark WZT, Toppel 100 or Equity. Ensure latest time of application and harvest intervals are completed before despatch. Control sooty mould using Octave or Rovral WG (EAMU 2011-3200).

Euphorbias - Use Fenomenal or Subdue to control phytophthora infections. Plant Trust contains a slow-release formulation of fosetyl-aluminium; Prestop or Trianum P are biological alternatives for compost applications. Avoid long periods of wet compost.

Revocations - The active ingredient chloropicrin was revoked on 23 June. The following are also revoked: Exemptor (MAPP 13122), Intercept 5GR (MAPP 14091), Intercept 70WG (MAPP 08585), Serenade ASO (MAPP 14318) and Alpha Linuron 50 SC (MAPP 14215). Replacement products are available. Toppel 100EC (MAPP 13704) loses its approval on 31 August. An EAMU for ornamentals is being applied for Toppel 100 (MAPP 15696).

Irises - If plants collapse, check for burrowing larvae. Drench soils and composts with Intercept 70WG to avoid soft rot issues.

Acanthus - Control bacterial infections in acanthus crowns using Cuprokylt and Serenade ASO (EAMUs required).

Irrigation - If aluminium irrigation pipes or irrigators in fields are laid where there are overhead power lines, read the fourth edition of HSE leaflet GS6 on avoiding danger from overhead power lines before starting.


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