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10 Feb 2012 | by John Adlam

Plane anthracnose: Hard-to-see brown patches can start to develop underneath leaf buds.

08 April - Monitoring and controlling pests

08 Apr 2011 | by John Adlam

Bark beetles: These pests will emerge as the weather starts to warm up. Spray the stems of pines and ornamental Prunus with Equity.

From the nursery

20 Aug 2010 | by John Adlam, managing director at Dove Associates

Pesticide resistance: Reduce pest and disease resistance by rotating pesticide groups in control programmes. The British Crop Production Council UK Pesticide Guide (book or online) lists the product group under the active ingredient name. Check your aphid, spider mite, whitefly, Botrytis, Septoria and...

From the nursery

09 Apr 2010 | by John Adlam

Sticky traps - Distribute traps to monitor pests on your crops. If you intend to use biological controls, be careful which pesticides you have used and plan to use.

From the Nursery:

05 Mar 2010

Mites: I have seen quite a lot of mite eggs on field-grown ornamental trees, particularly cherries, in the past week. Malus, Prunus, ash and Sorbus aria can be sprayed with Dursban WG, Hallmark WZT (SOLA 2008-2944), Envidor (SOLA 2009-3366) or Dimilin Flo to control rust mites and other bud-damaging...

From the nursery

09 Oct 2009 | by John Adlam

Windbreaks: If living windbreaks are trimmed during October make sure that the trimmings are removed and burned as they can be a source of both pest and disease to the crops beside them. Scale: Control adult scale insects now before the mother sits on top of her eggs and dies. Use Calypso (SOLAs...

Science into practice: Suction method for leaf hopper control

09 Oct 2009

A machine devised for a very different purpose might be the answer to providing a mechanical method for the cultural control of leaf hoppers in field-grown herbs.

From the nursery

18 Sep 2009 | by John Adlam

Lupins Remember to control seed-borne lupin anthracnose (Colletotrichum acutatum) with routine sprays of Scotts Octave, Cercobin WG (SOLA 2008-1384), Signum (SOLA 2009-1842) or Switch. Being seed-borne, it can be carried through most stages of the plant's life. Needle cast Needle cast diseases of...

From the nursery

31 Jul 2009 | by John Adlam

Drains With the high level and short-duration rainfall patterns we have had this month, check the effectiveness of your drainage system. It is becoming more important to keep drains clean and weed-free. If you "strim" ditches, make sure that the bulk of the weed growth is kept away from the main water...

From the nursery

17 Jul 2009 | by John Adlam

Lupins Remember to control the seed-borne lupin anthracnose ( Colletotrichum acutatum ) with routine sprays of Scotts Octave, Cercobin WG (SOLA 2008-1384), Signum (SOLA 2009-1842) or Switch. Powdery mildew This fungus is still persistent on a number of crops. The white growth can be cleaned up with...

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