Title: How to Control Nematode: Chemical, Physical and Biological Control
Headings: How to Control Nematode: Chemical, Physical and Biological Control
How to Control Nematode: Chemical, Physical and Biological Control
These are discussed in brief here:
Chemical Control:
Fumigants:
Non-Fumigant Chemicals:
Cultural Practices:
They result in partial or complete control of nematodes and include:
Crop Rotation of Non-Host Plants:
Physical Methods:
Biological Control:

Content: It is apparent that until 1940 numerous chemicals were investigated as possible nematocides for the control of nematodes. Chloropicrin appears to have been the only satisfactory chemical tested prior to 1940. There are a large number of nematocides available today. Nematocides used as soil fumigants are available as liquids, emulsifiable concentrates or granules. Application of nematocides in the soil is made either by applying the chemical evenly over the entire field (broadcast) or by applying it only in the rows to be planted with the crop (row treatment). Highly volatile nematocides should be immediately covered with polyethylene sheeting and should be left in place for at least 48 hours. The most convenient method of fumigating small areas is to inject the chemical with a hand applicator or to place small amounts of granules into holes 15 cm deep and 15-30 cm apart, and immediately cover the holes with soil. In all cases of pre-plant soil fumigation with phytotoxic nematocides, at least two weeks must elapse from the time of treatment before seeding or planting in the field to avoid plant injury. More intensive research is called for to determine situations where nematicidal application is necessary and worthwhile, methods to reduce the cost of treatment and the economics of chemical control. Increasing attention has to be devoted to the systemic nematicides, their efficacy and suitability under our conditions.