How Does Paecilomyces lilacinus Act as a Biocontrol Agent Against Nematodes?

Technical Introduction

Paecilomyces lilacinus is a soil-dwelling filamentous fungus known for its effective role as a biological control agent against plant-parasitic nematodes.
It infects nematode eggs and juveniles, reducing their populations and minimizing crop damage.
This fungus produces enzymes that degrade the nematode egg shell and penetrates the nematode body to suppress infestations naturally.

Applications

1. Agricultural Biocontrol

• Controls root-knot nematodes (Meloidogyne spp.), lesion nematodes, and other nematode pests in crops such as vegetables, fruits, and ornamentals.

• Reduces dependence on chemical nematicides, promoting sustainable farming.

2. Soil Health Improvement

• Enhances beneficial microbial balance by suppressing harmful nematodes without harming other soil organisms.

Advantages

• Environmentally Friendly: Non-toxic and safe for humans, animals, and beneficial insects.

• Selective Action: Targets nematodes specifically without broad-spectrum toxicity.

• Long-Term Control: Establishes in soil for prolonged nematode suppression.

• Easy Application: Formulated as powders, granules, or liquid inoculants for seed treatment, soil drenching, or mixing with organic amendments.

Typical Parameters

FAQs

Q1: How is P. lilacinus applied for nematode control?
A1: Typically via soil drenching, seed coating, or incorporation into soil before planting.

Q2: Can P. lilacinus be used with chemical nematicides?
A2: It is best used in integrated pest management; some chemicals may inhibit fungal activity.

Q3: Is P. lilacinus safe for non-target organisms?
A3: Yes, it specifically targets nematodes and is considered safe for beneficial soil fauna.

Q4: How long does it take to see nematode population reduction?
A4: Effects usually appear within weeks to months depending on environmental conditions.

Q5: Does P. lilacinus work in all soil types?
A5: It performs best in well-drained soils with moderate organic matter; effectiveness may vary with soil conditions.