The spots on the brinjal fruit is due to the attack of brinjal fruit and shoot borer insect LUCINODES ORBONALIS. The management aspects of the deadly insect is discussed in the blog and click the link to find the details.
For good quality fruits with fine lusture following plant growth regulators may be used as sprays.
Chamak 2 gm/L + Mahaphal 2 mL/L
https://www.bighaat.com/products/multiplex-chamak + https://www.bighaat.com/products/multiplex-mahapal-plant-bio-stimulant
Multiplex falcon 1.5 mL/L + 13:00:45 – 5 gm/L
https://www.bighaat.com/products/multiplex-falcon-growth-regulator + https://www.bighaat.com/products/npk-13-00-45potassium-nitratewater-soluble-fertilizer
Disclaimer: The performance of the product (s) is subject to usage as per manufacturer guidelines. Read enclosed leaflet of the product(s) carefully before use. The use of this product(s)/ information is at the discretion of user.