ERVIBANK

 

Unit of packaging

Box containing grain aphids on grain

Pack size: 2,500 ml box

Contains: growing winterwheat with approximately 500 grain aphids (Sitobion avenae)

 

Use

For the production of parasitic wasps Aphidius ervi or Aphelinus abdominalis or the hoverflies Episyrphus balteatus in banker plant system. Do not apply together with APHIBANK!

 

Rates
ERVIBANK	rate	m²/unit	interval (days)	frequency	remark
preventive	5/ha	2000 m²	14	-	-
curative light	-	-	-	-	-
curative heavy	-	-	-	-	-

 

Introduction

• open the box immediately after receipt
• take the tussock of plants from the box and place it on a separate piece of wetted rockwool of 2-3 litre. It is recommended to use a hanging 'fuchsia-pot' with 20 cm diameter
• place this in a light place: along sunny side of the main path, in a place where the box can be left for 10-12 weeks
• fit a dripper to the tussock for continuous supply of water and nutrients. A short moment of drought can be lethal. Also arrange proper drainage for any excess water
• remove dripper from tussock to rockwool when roots start to grow
• best results are obtained when banker plants hang above the crop. This enhances growth and makes cereal plants less vulnerable for mildew

 

Environmental conditions

The system is effective up to temperatures of approximately 30°C/86°F.

 

Remarks

• if aphids are found before the banker plants produce parasites, apply ERVIPAR (at least 0.5 per m²)
• aphids on banker plants are extremely susceptible to insecticides (also Pirimor!). When applying chemical pesticides, remove the tussocks away from the glasshouse for at least 24 hours. Put them in a place where even the vapour of pesticides cannot penetrate
• if the pesticide is applied via the drip system, remove the drippers from the tussocks for approximately 24 hours. Pesticide residues dissappear slowly from recirculation systems. In these cases it may be necessary to switch to an alternative way of fertigation temporarily
• grain aphids can only live on monocotyledons. This means that cultivated crops are not attacked
• in crops where ERVIBANK has not been used before in a crop a trial introduction is recommended
• start introductions of APHIDEND as soon as hyperparasites occur in banker plants or crop

 

Mode of action

On each tussock of grain a large, however slightly fluctuating population of Aphidius ervi will form. It is important to regularly add new tussocks for constant production of large quantities of parasitic wasps. The parasitic wasps actively search for aphids in the crop.

 

Visual effect

The aphid infestation level remains low due to the continuous presence of large quantities of parasitic wasps (an 'overkill' situation).

 

Important!

The introduction rates of this product should be adjusted to the mode of action of the product and the results that can be expected in the crop where the product is applied. Your local Koppert consultant or recognized distributor will be able to advise you further.

 

Only use products that are permitted in your country / state and crop.