Green larvae suck out the nutritive elements from the leaves of crops leaving them yellowish and drooping and eventually dropping off the plant. Besides, the larvae also eat up the pulses being formed. To control the pest, Kantibhai Vankar suggests that a two-kilogram solution of bitter gourd (Momordica charantia) be sprinkled on the crop of pigeon pea (Cajanus cajan) at the time of flowering. This prevents the green larvae infestation before pulses formation. Subsequently, pulses of good quality and higher yield will be produced. Kantibhai has learnt of this technique from his elders.
Crop Family: Fabaceae
Crop Scientific Name: (Cajanus cajan)
Crop Vernacular Name: Pigeon pea, red gram , toor, tur
Formulation: 2 kg solution of bitter gourd (Momordica charantia)
Ingredients: Juice of bitter gourd (Momordica charantia)
"Bitter gourd has function as a botanical insecticide. Yasui (2002) showed that the methanol extract of bitter gourd leaves effectively hinder eating larvae of Spodoptera litura and Pseudolatia separata. Ling, et al. (2008) stated that in the extract of bitter gourd leaf there are triterpenoids compounds which are effectivelly hinder the eating of Plutella xylostella larvae."
"Mosquitocidal effect of Bitter Gourd leaf extracts"
"Numerous medicinal properties of nearly all parts of the plant have been reported. The fruits are used as tonic, purgative, stomachic carminative, anti-helminthic, anti-inflammatory, febrifuge, vulnerary, stimulant, thermogenic, anti-diabetic etc. (Longman, 1995). The fruit acts as an anthelmintic, stomachic, antibilious and laxative. In fact, it is a tonic fruit, used in rheumatism, gout and also for diabetes"