Nematicidal Properties of Chitosan Nanoformulation

Area of Science:

• Agricultural Science
• Materials Science
• Nematology

Background:

• Chitosan, a bio-polymer derived from crustaceous shells and fungi, is abundant and versatile.
• Nanotechnology offers novel approaches for pest and disease management.
• Root-knot nematodes, such as Meloidogyne incognita, cause significant agricultural damage.

Purpose of the Study:

• To synthesize and characterize chitosan nanospheres using the ionic gelation technique.
• To evaluate the efficacy of chitosan nanospheres against the root-knot nematode Meloidogyne incognita.
• To assess the impact of chitosan nanospheres on plant growth and yield.

Main Methods:

• Chitosan nanospheres were prepared via ionic gelation.
• Characterization involved particle size analysis, FTIR spectroscopy, and transmission electron microscopy.
• Nematicidal activity was tested in vitro, under pot culture, and in a field experiment.

Main Results:

• Chitosan nanospheres exhibited a particle size of 380.2 nm with good stability.
• In vitro and pot culture studies demonstrated significant suppression of Meloidogyne incognita.
• Application of chitosan nanospheres led to substantial reductions in galls, egg masses, adult females, and juveniles, alongside an 18.75% increase in fruit yield.

Conclusions:

• Chitosan nanospheres are effective in controlling Meloidogyne incognita.
• This nanoformulation presents a promising eco-friendly strategy for nematode management in agriculture.
• The use of chitosan nanospheres can enhance crop yield and reduce nematode-induced damage.