ðə wˈɑːsp lˈɑːɹviː fˈiːd ɔnðə ɡˈɔːl tˈɪʃuː ɹɪzˈʌltɪŋ fɹʌm ðɛɹ sᵻkɹˈiːʃənz, wˌɪtʃ mˈɑːdᵻfˌaɪ ðɪ ˈoʊk bˈʌd ˌɪntʊ ðə ɡˈɔːl, ɐ stɹˈʌktʃɚ ðæt pɹətˈɛkts ðə dɪvˈɛləpɪŋ lˈɑːɹviː ʌntˈɪl ðeɪ ˌʌndɚɡˈoʊ mˌɛɾəmˈoːɹfəsˌɪs ˌɪntʊ ɐdˈʌlts.
The wasp larvae feed on the gall tissue resulting from their secretions, which modify the oak bud into the gall, a structure that protects the developing larvae until they undergo metamorphosis into adults.