1 April - Feed and predators

Feeding - Water composts with an iron chelate EDDHA at the rate of 100g/10 litres water diluted at 1:200. EDTA chelates do not work so well as a drench. Apply to ceanothus, cytisus and potentilla.

New predator - Ensure whitefly predator Styngya badli is applied early enough before despatch to comply with 14-day harvest interval to avoid potential staff and customer injury.

Gleditsia pea gall - Prevent egg-laying in new buds with Gazelle SG or Hallmark WZT (EAMU 2008-2844) as leaves start to emerge.

Lavenders & Paeonies - Direct sprays to stem bases using Octave, Serenade ASO (EAMUs required), Signum (EAMU 2012-2141) or Switch to control shab and blight.

Spider mites - Introduce Phytoseiulus onto protected crops after your recent Apollo 50SC (EAMU 2014-1271) application. Use predators along with Dynamec, Majestik, Naturalis-L and SB Plant Invigorator. Note that some of these products can temporarily affect predator populations. Where foliage is not touching, increase predator numbers to compensate.

Vine weevil - Apply Steinernema kraussei (Nemasys L) into previously untreated or vulnerable crops to control larvae. Dursban WG (non-IPM) can be drenched into non-edible and selected edible crops but check the label first. Control adult pests with Chess WG (EAMU 2013-2016), Dursban WG, Hallmark WZT (EAMU 2008-2944) or Explicit (EAMU 2011-2090) according to label and off-label restrictions.

Sticky traps - Install and monitor now.

Sequel - The end sales date is 31 May 2015. Use by 31 May 2016. EAMU required for use on protected crops.

Rust - Control infections on fuchsia, heuchera and other vulnerable crops using Amistar (EAMU 2009-0443), Bumper 250EC (only on compatible fuchsia varieties, EAMU 2014-1274), Signum (EAMU 2012-2141) or Systhane 20EW.

Shot-hole - Overhead irrigation can produce an ideal environment for bacterial infections to spread on Prunus spp. Irrigate plants and then apply Cuprokylt, Serenade ASO (EAMUs required) plus a wetting agent. Aim to leave foliage dry for at least 24 hours.

Bark beetles - Control emerging bark beetles by applying Dursban WG directly onto the stems of pines, cherries and other vulnerable crops.


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