…an abnormal growth formed in response to the presence of insect larvae, mites, or fungi on plants and trees, especially oaks…
…a minute mite which is parasitic on plants, typically living inside buds and causing them to form hard galls…
…a small winged insect of ant-like appearance. The female lays its egg in the food plant and when the larva hatches the surrounding plant tissue swells up around it to form a gall…
…a small, conical, nail-shaped gall that forms on the leaves of lime trees in response to the presence of mites…
…a hard nut-like gall that forms on some varieties of oak in response to the developing larva of a gall wasp. It is used as a source of gallic acid and tannin…
…a bacterial disease of plants, especially fruit bushes and trees, which is characterized by large tumour-like galls on the roots and lower trunk…
…a small, delicate fly which induces gall formation in plants or may cause other damage to crops…
…a hard spherical gall which forms on the common oak in response to the developing larva of a gall wasp…
…a spherical red or purple gall which forms on the leaves or male catkins of oak trees in response to the developing larva of a gall wasp. It results from eggs laid in the spring and alternates within the annual cycle with the spangle gall…
…the small sac-shaped organ beneath the liver, in which bile is stored after secretion by the liver and before release into the intestine…
…a hard, irregular umbrella-like gall which forms on an oak acorn in response to the developing larva of a gall wasp…
…a reddish disc-shaped gall that forms on the undersides of oak leaves in response to the developing larva of a gall wasp. It results from eggs laid in the summer and alternates with the currant gall within the annual cycle…
…a hard egg-shaped gall which forms inside an artichoke bud in response to the developing larva of a gall wasp…
…a reddish mosslike growth on rose bushes that forms in response to the developing larvae of a gall wasp…
…a reddish moss-like growth on rose bushes, forming in response to the developing larvae of a gall wasp…
…a small, delicate fly which induces gall formation in plants or may cause other damage to crops…
