Potato FAQs

In this section you will find answers to the questions asked most frequently about Dow AgroSciences’ products that are used in potatoes grown in the UK. Areas covered include potato blight monitoring, the use of Telone* II and Cutworm reports.

If your question is not answered here, please Contact Us or call our Technical Hotline on 0800 689 8899.

What are the required soil conditions for application of Telone* II?
Who is my nearest specialist contractor for application of Telone* II?
I have used Fazor^~ on my potatoes. When should I check my store for the first signs of sprouting?
Can Fazor^~ be used on crops other than potatoes?
What are the LERAP categories of products used in potatoes?
What is the rainfastness period of products used in potatoes?

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What are the required soil conditions for application of Telone* II?

To facilitate sealing and uniform fumigant penetration, plough crop remains in to the soil sufficiently in advance, so they are decomposed before treatment. Soil should be in good workable and friable condition, warm, at least 5°C, with adequate moisture for good seed germination. Deep tillage, at least 30cm, improves results. Treat loams and clay loams when relatively dry (when water content is one half of field capacity). Do not use on extremely heavy clay soil or on soil containing a high proportion of large stones.

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Who is my nearest specialist contractor for application of Telone* II?

To find your nearest Telone II Specialist Contractor please Contact Us.

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I have used Fazor^~ on my potatoes. When should I check my store for the first signs of sprouting?

The length of suppression of sprouting achieved in a given season is a function of several factors including variety, growing conditions, application conditions, application accuracy, length of storage period and conditions during storage. Potato stores should be regularly monitored.  Usually the first signs of sprouting may occur towards the end of November onwards.

^~ Fazor is a registered trademark of Chemtura and its subsidiaries

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Can Fazor^~ be used on crops other than potatoes?

Specific Off-Label Approval (SOLA) number 20081326 allows the use of Fazor on carrots and parsnips.

Users of agricultural pesticides may apply to have the approval of specific pesticides extended to cover uses additional to those approved and shown on the naufacturer's product label.  Any such specific off-label approvals granted may have additional conditions of use attached to them.  Use in these cases is undertaken at the user's choosing, and the commercial risk is entirely theirs.  Users are required to be in possession of the relevant notice of approval.  Electonic copies of off-label approvals can be obtained from the Chemicals Regulation Directorate (CRD) website SOLA database. 

For further information contact:

CRD's Approvals Support Group
Tel:  01904 455724
Fax: 01904 455722
Email: applicant-enquiries@hse.gsi.gov.uk

 

^~ Fazor is a registered trademark of Chemtura and its subsidiaries

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What are the LERAP categories of products used in potatoes?
What is the rainfastness period of products used in potatoes?

Please refer to the following table for the LERAP category and rainfastness for products used in potatoes.

Product	LERAP	Rainfastness (hours)
Dithane 945	x	1
Dithane NT	x	1
Dursban WG	A	soil - n/a / leaf - 4
Equity	A	soil - n/a / leaf - 4
Fazor	x	24
Telone II	n/a	n/a

A - NOT eligible for buffer zone reduction under LERAP scheme for horizontal boom sprayers. LERAP applicable for broadcast air-assisted sprayers.
> B - Buffer zone reduction possible if LERAP carried out.
X - No requirement for buffer zone.
> n/a - Not applicable.

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