Fargro News - March 2008
Switch - Move over to better control of Botrytis.
Switch is a mixture of two active ingredients, cyprodinil and fludioxonil, both of which have different modes of action. Switch provides excellent control of Botrytis and has additional activity against a range of other diseases. Switch has long lasting protectant and systemic activity and the two active ingredients provide a built-in resistance management mechanism.
Fludioxonil Fludioxonil inhibits spore germination and growth of germ tubes and mycelia on the plant surface (preventative fungicide).
Cyproninil Cyprodinil interferes in the fungal life cycle by:
  • Inhibition of penetration.
  • Distribution of mycelial growth in the plant (systemic action).
SWITCH OFF ROT AT THE FLICK OF A SPRAY
The combination of cyprodinil and fludioxonil provides effective disease protection on the leaf surface, along with systemic movement within the plant to target disease. Wet, warm conditions conducive to Botrytis can cause a rapid build up of disease at any time of the season, with crops particularly susceptible during showery weather or following irrigation. Switch provides growers with an extremely effective botryticide, which also controls black spot (Colletotrichum acutatum), Sclerotinia, Alternaria and has some activity on powdery mildew.
SWITCH - APPROVED USES:
Switch has on-label approval for use on fresh beans / peas for a range of diseases and outdoor and protected strawberries for the control of Botrytis, Sclerotinia, Mycosphaerella, Ascochyta and Colletrotrichum (refer to label for details). A number of SOLAs have also been approved for both outdoor and protected edible crops. Switch can be used on ornamental crops under the Long Term Arrangements for Extension of Use (LTAEU).
Click here for more information on Switch.
SWITCH - USERS REPORTS:

HDC trial FV 294 Outdoor Lettuce
Switch came out top for Botrytis. Switch showed best results on Botrytis control on field lettuce compared to other treatments in a recent trial.

Bell Brothers Nurseries Ltd Bell Brothers Nurseries Ltd
Bell Brothers are a 15 acre pot/bedding nursery supplying into the leading supermarkets with quality second to none. Disease such as Botrytis can have a devastating effect on the quality of these crops and therefore the use of chemicals such as Switch is necessary to avoid this problem. Neil Chambers Technical Manager at Bell Bros comments that "Before Switch was used the nursery had issues in using other products to control Botrytis." "Moreover alternative products in the market place tended to leave a residue on the leaves." He adds "that since using Switch in a programme Botrytis has virtually been eliminated, there are no issues with residues on the leaves and Switch can help control other fungal infections." Neil also comments that "flower size and strength are also noticeably larger and stronger giving an overall higher class of quality. Switch is competitively priced and the nursery will continue to use this for their main Botrytis management control".

Senetti® Switch Turns Off Botrytis on Senetti
Steve Ulrich Independant Consultant Steve reports excellent control when Switch was applied on very soft Senetti plants in January when light levels were low. "The spate of dull weather coincided with extensive sporulation of Botrytis down the Senetti stems". "A 60 gram /100 litre Switch application was extremely effective in clearing up the infection with no adverse effects on the plant". "A very impressive result" commented Steve.
ALWAYS READ THE LABEL. USE PESTICIDES SAFELY.
Click here for more information on Switch.
Switch is a Trade Mark of a Syngenta group company.
Switch contains cyprodinil and fludioxonil
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