Chilli plant infected with the leaf curl disease shows the symptoms like, leaf curling, stunting, plant stops flowering. Leaves become yellowish green in colour. The disease is normally found in the winter season and as a result of the infestation the growth of the crop ceases and there is loss in the yield. To cure leaf curl in chilli, 500 g of lemon (Citrus limon) juice is mixed in 10 L of water and sprayed on about 0.32 ha standing crop. The effect of the spray persists for 7-8 days. The remedy is proved to provide 75 to 80% control of the disease.
Crop: Chilli
Crop Family: Solanaceae
Crop Scientific Name: (Capsicum annuum)
Crop Vernacular Name: Mirch, Marchu
Ingredients: Lemon (Citrus limon) juice
"Fruit juice of C. limon inhibited clinical isolates of Staphylococcus aureus, Escherichia coli, Klebsiellaaerogenes, and Klebsiellapneumoniae.[32] Peel extracts of C. sinensis has marked antibacterial action while C. aurantium revealed higher antifungal activity against Colletotrichumcapsici in comparison with each other.[33] Aqueous extracts of peel and juice from fresh and dried Citrus and sweet lemon reported antimicrobial action against six Gram-positive and eight Gram-negative bacterial and one yeast isolates.[34] C. sinensis seed oil is highly effective as an antifungal agent against Lentinussajor-caju, which caused white rot in wood hence, it can be used as a preservative agent in the management of wood infected with white rot fungi.[35] Propionibacterium acnes, bacterial species that causes Acne vulgaris is reported very sensitive to C. limon.[36] Methanolic extract of C. sinensis fruit peel was able to inhibit all the bacteria [Chaudhari, Swapnil&Ruknuddin, Galib&Prajapati, Pradeep. (2016). Ethno medicinal values of Citrus
genus: A review. Medical Journal of Dr. D.Y. Patil University. 9. 560. 10.4103/0975-2870.192146.]"
https://www.researchgate.net/publication/309301997_Ethno_medicinal_values_of_Citrus_genus_A_review
"An aqueous composition of acetic and citric acid in combination with surfactant, for use as a fungicidal composition. The composition may be used in the treatment of fungus on vegetables, flowering plants and trees" [
https://patents.google.com/patent/WO2000038516A1/en ]
"Citric and Ascorbic Acid Drive some Physiological, Biochemical and Molecular Aspects in Tomato Plants Inoculated with Tomato spotted wilt virus (TSWV) {A. M. Bondok1 and M. F. M. Ibrahim2 , Middle East Journal of Agriculture Research, 3(4): 1248-1261, 2014 ISSN 2077-4605 "
http://www.curresweb.com/mejar/mejar/2014/1248-1261.pdf