Pest control update from NASC

[PLZMLH at VAX.CCC.NOTTINGHAM.AC.UK]

To: ARAB-GEN
From: Mary Anderson (NASC)
Subject: CHEMICAL CONTROL OF PESTS AND DISEASES 


In our Seed List we carry information about the control of pests and 
diseases. Here is an update on this information for your files.


Thrips:
Fumigate with nicotine 40% shreds (DowElanco Ltd) or Lindane smoke 
pellets (Octavius Hunt Ltd) at 14 day intervals.  If the infestation is severe 
fumigation may be carried out 3 times at 7 day intervals, although this may 
result in some scorching of the plants.  Alternatively, granules of Temik 
10G (Union Carbide, or Basudin 5G (Ciba-Geigy Agrochemicals) may be 
sprinkled around and watered in.

Whitefly:
Fumigate with Lindane smoke pellets (see above) or Propoxur smokes 
(Octavius Hunt Ltd).

Sciarid (mushroom fly):
Fumigate with Lindane smoke pellets or Nicotine 40% shreds (see thrips 
above) to eradicate flies and incorporate Basudin 5G granules into the 
compost to kill the larvae.  *The compost and benches may also be 
drenched with a solution of Diazinon liquid (Murphy Chemicals Ltd) to 
eradicate the larvae.
Addendum
The chemical Diazinon previously used in the control of sciarid fly is no 
longer obtainable and the following regime is now used to control this 
pest.
a) Biological control: Nemasys (koppert, UK Ltd)
b) The plants, pots and benches are thoroughly drenched with a mixture of 
Nemolt (Applied Horticulture Ltd) and Savona (Koppert UK Ltd)


Aphids:
Fumigate with 40% nicotine shreds.

Red Spider Mite:
Fumigate with 40% nicotine shreds maintaining a temperature of 25C for at 
least 8 hours alternately the plants may be sprayed with Pentac Aquaflow 
(Dow Agriculture Ltd) or Savona (Koppert UK Ltd).


Fungal Diseases:
Spray or drench plants with a solution of Benlate systemic fungicide (ICI 
Ltd).

Please observe the safety recommendations supplied with the 
products when handling these chemicals.