• MAPP No.
• Description
• Uses
• Mode of Action
• Advantages
• Directions and Areas for Use

1) Selective Weed Control in roses, ornamental shrubs and trees

• Time of Application
• Application
• Application Rates
• Notes for Guidance

2) Total Weed Control on land not intended to bear vegetation

• Time of Application
• Application
• Application Rates

3) Aquatic Weed Control

• Time of Application
• Application
• Application Rates
• Notes for Guidance
  
  
• Aquatic Weeds Controlled
• Weeds Controlled
• Safety Precautions

When applied to the water surface, Casoron G granules sink down into the mud and disintegrate. The active ingredient is released and is absorbed by the mud. Once absorbed it is taken up by the plant roots causing the death of submerged weeds.

• Versatile weedkiller for pre and post emergence weed control
• Varying application rates give selective or total weed control
• Gives season-long persistence
• Easy to use, requires no water
• Indifferent to weather conditions
• DEFRA approved for use in or near water
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Ornamental Trees and Shrubs: Apply before onset of spring growth, usually in February or early March.

Under conditions of moderate to severe weed infestation, especially of perennial grasses, a late autumn (November) application is recommended. It should be noted, however, that in comparison with normal spring application, persistence into the year following an autumn application will then be reduced.

Alternatively, a split application may be made, by applying two thirds of the recommended rate in the autumn, followed in the spring by a further similar dose.

Residual Activity: When used in accordance with these directions, the residual activity of Casoron G is in the region of approximately 3-6 months at selective rates. If used later than recommended, due to warmer conditions, the residual activity may be lessened.

Application can be varied from 56kg to 125kg per hectare according to weed spectrum; equivalent to 56-125g per 10square metres. See table on following pages for weeds controlled.

Weeds are classified according to their relative susceptibility to increasing rates of Casoron G. Progressive increases in the rate of use of Casoron G will broaden the spectrum of weeds controlled and lengthen the persistence of that control. In general, application to a slightly moist soil during cool weather conditions will give best results, particularly if rain follows shortly after application.

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• In or around glasshouses or near hops.
• When plant foliage is wet as granules may then lodge on leaves or in leaf axils and cause damage.
• To snow covered ground.
• To frozen or waterlogged ground.
• To areas under-planted with bulbs, or containing herbaceous stock or annual plants.
• To sites within 18 months of sowing or re-planting. If the site has been cultivated within this period and herbicide residues incorporated into the soil, activity of the herbicide may be prolonged and result in a check to certain of the following ornamental species.
• Casoron G as a pre-planting treatment.

5. DO NOT disturb treated soil by hoeing etc., or weed control may be impaired.
6. Ensure granules do not fall or blow onto areas other than those intended for treatment.

Application is restricted to the following established ornamental species:

*Application should not be made to Norway Spruce when grown for Christmas tree production.
Insufficient information exists to make a recommendation for the treatment of other ornamental shrubs and trees. With other species only a limited number of specimens should be treated in the first instance.

Do NOT apply Casoron G to:

Application rates
When applied at high rates, Casoron G will give total control of all but a few resistant weed species. The long-term persistence in the top 5cm of soil gives residual activity both against existing weeds and emerging weed seedlings. Casoron G can be used as a total weedkiller on all uncropped land such as paths, driveways, around buildings, under fence lines, along wall footings and on parking and play areas.

The rate varies according to weed species present, see below for WEEDS CONTROLLED to determine application rate required;
125-225kg per hectare, equivalent to 125-225 grammes per 10 square metres.

The use of aquatic herbicides is subject to the requirements set out in the 'Guidelines for the use of herbicides on weeds in or near watercourses and lakes' (reference PB 2289) available FREE from DEFRA Publications, Admail 6000, London SW1A 2XX
(Tel: 08459 5556000).

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Key
Alg. = Algae
Fl.  = Floating spp.
Em. = Emergent spp. Sub.= Submerged spp.

* In certain areas this plant, because of its rarity, is of botanical interest and importance. Where it is present, local naturalists should be consulted before treatment.

56g/10sq metres
Control of germinating annual and perennial weeds and light to moderate infestations of susceptible established annuals - apply in December or January. This rate will only be effective in situations where established perennial weeds are not present and will only maintain adequate weed control until mid season, when further treatment involving the use of an alternative herbicide may be required, such as Nomix Hilite®.

80g/10sq metres
Provides greater persistence. At this rate certain established perennial weeds may also be suppressed.

100g/10sq metres
Control as previous rate but including the following established perennial weeds:

125g/10sq metres
To broaden weed control by including those established weeds listed below:

170g/10sq metres
Weeds listed below are unlikely to be controlled at rates below 170g/10 sq. metres, but are progressively checked with increasing rates.

225g/10sq metres
To provide improved control of severe infestations and to give greater persistence. This rate will control all susceptible weeds for up to 12 months and is recommended for total weed control on paths, driveways, hard tennis courts, wall footings, fence lines etc.

The following weeds are resistant to Casoron G at 225g/10sq metres:

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Last amended 01/07/06