Neem seed kernel extract 5% and neem oil 3% are listed against sweet orange pests. For slow decline caused by the citrus root nematode, apply Pseudomonas fluorescens at 20 g per tree, 15 cm deep and 50 cm from the trunk.
Pending expert review
Source
Crop Production Guide – Horticulture Crops 2020 (Directorate of Horticulture and Plantation Crops, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Sweet Orange – Pests; citrus root nematode, p. 18
