Furthermore, among the county’s 10 oak species, none supports more gall wasp species than blue oak (Quercus douglassii). Gall guru Ron Russo, who has spent a lifetime hunting and studying galls ...

In medicine the following galls have been used: Andricus fœcundatrix Hartig, Cynips sp. Cuvier on field cirsium Cynips gallæ-tinctoriæ Olivier, Cynips polycera Giraud, Cynips quercus-folii Linnæus ...

After many kilometres, the chain on my bike comes off next to a majestic oak. The tree becomes Quercus: a friend, a confidant ...

Quercus laceyi is ... If galls are considered unsightly, they can be removed by hand or infested plant parts can be pruned and discarded. However, this may not prevent future infestations.

The galls of native oaks in these islands, however, held only a third as much tannin as oak species in the Middle East, notably the small, so-called Aleppo oak, Quercus infectoria.Its dark and ...