Nutritional Physiology of the Brown Rice Planthopper, Nilaparvata lugens STAL (Hemiptera : Delphacidae) : III. Essential Vitamins for Nymphal Development

Abstract

Essential vitamins for nymphal development of the brown rice planthopper were studied. Newly hatched nymphs were reared on artificial diets deleting a single vitamin. Nymphs could not grow to the adult stage when thiamine, pyridoxine or pantothenic acid was deleted. Therefore, these three vitamins are essential. The minimum concentrations required were 0.005 to 0.01 mg/100 ml of thiamine hydrochloride, 0.039 to 0.078 mg/100 ml of Ca pantothenate and less than 0.005 mg/100 ml of pyridoxine hydrochloride.