Nanjibhai Chhanabhai Rathod from the Kheda district in Gujarat prepares a pesticide from lime and whey milk to control infestation of larval pest in cabbage (Brassica oleracea). Cabbage is grown as a vegetable crop in the irrigated areas of Central Gujarat. Infestation of larval insect pest is noticed by seeing black coloured dirty excreta near the stem of plant and leaf canopy. It affects the crop growth and production. This pest eats leaves and makes a sieve like structure. Rathod dissolves approximately 1.5 kg lime used for white wash in two to three litres of whey milk and sufficient quantity of water. He filters the resultant suspension through a cotton cloth and sprinkles over the infested crop either with a broom or a sprayer. About two to three sprays are carried out in five to six days interval to control this pest. This method has been used for a very long time.
Crop: Cabbage
Crop Family: Angiospermae
Crop Scientific Name: (Brassica oleracea)
Crop Vernacular Name: Kobi, Gobi, Kobhij, Bandhakopi, Bandha kobi, Muṭṭaikkōs
Formulation: Slaked quick lime and whey milk
Ingredients: Slaked quicklime [Lime that is used for white washing], whey milk, cotton cloth, broom or a sprayer and water.
"Club rot diseases - Add hydrated lime to soil to increase pH to 7.2 ( 6 weeks before planting @ 1.5 t/ac)"
https://farmer.gov.in/imagedefault/ipm/AESA%20based%20IPM%20Cabbage%20and%20Cauliflower%20(final%2025-02-2014).pdf
"Clean transplants and crop rotation help reduce disease problems. Seed beds should not have been in crucifers for 6 - 8 years or must be fumigated. If club root is a problem and fields are not available to rotate to, broadcast and disc in 1500 lb of hydrated lime per acre 2 to 3 days prior to transplanting if the soil pH is not over 7.5. This should not be done more than once every 3 years. Otherwise the soil pH should be over 6.5."
https://ipm.ca.uky.edu/files/ipm11cab.pdf
"Milk and milk components reduce the motility of Ostertagia circumcincta larvae in vitro" -
https://www.tandfonline.com/doi/abs/10.1080/00480169.2003.36360