Signum Fungicide

Product Overview
Product Type	Fungicide
Product Name	Signum
MAPP No.	11450
Active Substances	26.7% w/w boscalid and 6.7% w/w pyraclostrobin
Areas of Use	Protected and outdoor forest nursery (off label), protected and outdoor ornamental plant production (off label), Amenity vegetation and interior landscapes (off label)
Amateur/Professional	Professional
Phytomobility	Acropetal penetrant and local penetrant
Mode of Action Group	SDHI & Qol fungicide

Signum is an acropetal penetrant and local penetrant which can be used to control a variety of fungal pathogens that cause disease on plants in amenity vegetation, interior landscapes, ornamental plant production and forest nurseries. Signum can be used at a rate of up to 1.35 kg/ha in amenity vegetation and interior landscape setting twice per year.

Signum has been proven to deliver long lasting disease protection, particularly when applied preventatively. The combination of two active substances works to improve control and increase the range of diseases that can be targeted.

Signum is effective against a range of diseases including blight, box blight, leaf spot, scab, rust and grey mould (see product label and extension of authorisation for full details).

 

---

Application Recommendations

Where to use

Signum has on label approval for use on the following crops:

• Fruit: Blackcurrant (outdoor), strawberry
• Vegetables: Broccoli/calabrese, brussel sprouts, carrot, cauliflower, lettuce, potato, field bean, vining pea

Signum also has Extension of Authorisation for Minor Use (EAMU)* approvals for a variety of crops including:

• Forestry: Protected and outdoor forest nursery
• Seed crops: All protected and outdoor non-edible seed crops
• Ornamentals: Protected and outdoor ornamental plant productions
• Amenity: Amenity vegetation
• Indoors: Interior landscapes

When to use

Signum should be used preventatively when disease risk is high but symptoms are not yet visible

How to use

• Ensure spray tank is clean and half fill with water
• Add the required amount of Signum to the tank whilst agitating and complete filling with water
• A fine - medium spray quality should be used and the foliage covered thoroughly to ensure good control

Crop	Maximum Treatments	Dose	Water Volume	Application Method
Protected and outdoor non-edible seed crops	2	1.5 kg/ha	200-1000 l/ha	Knapsack sprayer Trolley mounted and trailed sprayer
Protected and outdoor forest nursery Amenity vegetation Interior landscapes	2	1.35 kg/ha	200-1000 l/ha	Knapsack sprayer Trolley mounted and trailed sprayer

---

Additional Information

Do not apply more than 6 kg/ha of Signum to the same area of land per annum (adhere to crop specific limits)

---

Active Substances

Boscalid

Chemical group: Pyraclostrobin belongs to the QoI class of fungicides (Quinone outside Inhibitors).

Mode of action: QoI's work by blocking the pathogens ability to produce energy through the transfer of electrons.

Phytomobility: Pyraclostrobin is a local penetrant which means that movement will be translaminar (“across the lamina”, or leaf blade). When these fungicides are applied, most of the active ingredient is initially held on, or within, the waxy cuticle of plant surfaces. Some of the active ingredient “leaks” into the underlying plant cells.

Pyraclostrobin has an affinity for the waxy cuticle and quickly rebinds to the cuticle on the far side of the leaf blade. Thus, the fungicide can be found on both leaf surfaces, even if only one leaf surface was treated. Translaminar movement can take one to several days to be fully effective.

Application timing: Pyraclostrobin is best applied preventatively when disease risk is high but symptoms on the leaf are not yet visible.

Resistance: QoI fungicides have a highly specific mode of action in which only one biochemical site is targeted within the fungal cell. Therefore resistance can occur from just one mutation of that single site.

QoI fungicides must be alternated with products with a different mode of action. Using a QoI fungicide at the earliest stages of disease development as a preventative treatment will also help to reduce the risk of resistance.

---

For further information on Signum, please contact a member of our technical sales team on 01952 897917.