DIMINEX

 

Unit of packaging

Dacnusa sibirica & Diglyphus isaea (parasitic wasps)

Pack size: 100 ml bottle

Contains: 125 Dacnusa & 125 Diglyphus

 

Target

Leaf miners in all larval stages, preferably the first and second stage for Dacnusa sibirica and the second and third stage for Diglyphus isaea.

 

Rates
DIMINEX	rate	m²/unit	interval (days)	frequency	remark
preventive	-	-	-	-	-
curative light	¼m²	1000	7	min. 3x	if <1 larva/10 plants
curative heavy	-	-	-	-	if>1 larva/10 plants, use MIGLYPHUS

 

Introduction

• release parasitic wasps among leaves
• in the morning or in the evening

 

Environmental conditions

DIMINEX can be used at low levels of infection, but also when infection increases.

 

Storage and handling

• storage after receipt: 1-2 days
• storage temperature: 8-10°C/47-50°F
• in the dark

 

Appearance

Adults Dacnusa: size 2-3 mm, dark-brown to black, long antennae

Adults Diglyphus: size 2-3 mm, metallic green, short antennae

Other stages: develop inside/outside host

 

Mode of action

Female adult parasitic wasps of Dacnusa sibirica lay an egg inside the leaf miner larva, the parasitic wasp develops inside the leaf miner pupa. Female adult parasitic wasp of Diglyphus isaea paralyses leaf miner larva in the mine and lays an egg on it. The egg develops into a parasitic wasp inside the mine (but outside the leaf miner), using the dead larva as food. Host-feeding also takes place.

 

Visual effect

Two weeks after introduction it is possible to see parasitization. The presence of Diglyphus isaea is recognized by short/stopped mines containing a dead larva. Pupae of Diglyphus isaea can be seen when holding leaves up to the light. Presence of Dacnusa sibirica can only be estimated by dissecting larvae in the laboratory.

 

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. Check local registration requirements.
Koppert Biological Systems can not be held liable for unauthorized use.