DISEASES OF FLOWERS, LEAVES AND STEMS

Aphelenchoides besseyi – white tip of rice-Survives as preadult (J4) in seed,gets distributed with seed.-When hydrated, nematodes leave seed and migrateto growing point of rice where they are carried upas the rice grows.-Move into inside of leaf sheaths and inner tissuesof developing flowers and lay eggs.- Ectoparasites on tissue surface.- Life cycle takes about 8 days = one of most rapid.