The diminishing availability of chemicals has resulted in greater emphasis on IPM (Integrated Pest Management). IPM programs are built on five key principles as follows.
- Monitoring of the adult Vine Weevil
- Monitoring of the Vine Weevil larvae
- Cultural Control (Hygiene)
- Biological Control
- Chemical Control
IPM is an effective method of controlling certain pest problems in both ornamental and edible crop production. The concept is to ensure a pest problem is prevented before it becomes established.
Biological control of Vine Weevil involves two species of nematodes; Steinernema feltiae (Entonem) and Heterorhabditis bacteriophora (Larvanem).
Steinernema feltiae is a cold tolerant nematode and is more efficient for the control of the larvae early in the growing season. Heterorhabditis bacteriophora is a warm tolerant nematode and is more efficient during the mid-season.
Factors to consider when using biological controls for vine weevil;
- Sourcing of Plant Material
- Growing Media
- Growing System
- Application of Biological Controls.
Thanks to David Davidson Technical Consultant for Koppert Ireland for delivering a very informative and insightful webinar on Biological Controls for Vine Weevil.
If you would like to watch the webinar follow the link to CAFRE TV YouTube Channel.
Conor Gallinagh - Horticulture Development Adviser (Ornamentals)