thread blight(n = noun.state) - a disease of tropical woody plants (cacao or tea or citrus);
is a kind of blight

alder blight, american blight, apple blight, bean blight, beet blight, blight, blight canker, blister blight, cane blight, celery blight, chestnut blight, coffee blight, collar blight, fire blight, golden thread, halo blight, hang by a thread, head blight, late blight, leaf blight, lisle thread, needle blight, oak blight, pack thread, peach blight, pear blight, potato blight, rim blight, screw thread, spinach blight, spur blight, stem blight, stripe blight, thread, thread maker, tomato blight, twig blight, walnut blight