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Foliar nematodes are tiny (0.5 to 1.0 mm) colorless roundworms in the Genus Aphelenchoides. The four major species are: A. besseyi, A. Xblastophthorus, A. fragariae, and A. ritzembosi. Foliar nematodes are free-living and can be found on plant leaves, stems, buds, and crowns of numerous host plants. They also occur in the soil. Feeding injury causes a variety of symptoms that are often difficult to diagnose and can be confused with bacterial diseases. Injury to leaves begins as water-soaked areas and proceeds to brown dead tissue. Damage usually occurs between leaf veins, so depending on the plant species may be striped or patterned.

Two peak population periods are March - May and Nov - Jan. Female nematodes can produce more than 100 eggs, which will hatch into larvae. Larvae can mature and begin reproducing in about 2 weeks. Older larvae can become dormant in dry conditions and can remain that way for months or years, resuming development when conditions become favorable. Nematodes move when there is a thin film of water on the plant surfaces. Spread is by splashing water, and is made easier by close plant spacing.

General cultural controls are: disposing of infected plants; avoid overhead watering; use proper spacing; no watering during darkness; reduce humidity; discard fallen leaves and use resistant varieties.

Pylon®
For use on ornamental crops grown in commercial greenhouses.

Rate: 5.2 - 10 fl. oz. per 100 gallons
Signal Word: Caution REI: 12 hours

Pylon is a member of the new class of chemistry know as Pyrroles. With good contact and stomach activity, its mode of action is unique among insecticides.

Initial application of Pylon should be applied at first signs of plant damage or nematodes followed by a second application at 7 - 14 days. A third application can be made at 4 - 6 weeks following the initial application if plant damage or nematodes are detected.

Pylon should be applied in combination with other effective insecticides with a different mode of action when used in a subsequent crop in the same greenhouse structure.

Do not store below 32° F or in direct sunlight or heat. Always read the label.

Note: With the many new varieties and cultivars it is wise to test each for phytotoxicity before doing large areas if there is no local experience.

Pylon is a registered trademark of BASF Corp.