If the State Entomologist declares that an emergency exists because of the prevalence of gypsy moths, he may so certify to the Finance Advisory Committee. The Finance Advisory Committee may thereupon add from the resources of the General Fund to the appropriation of the Department of Energy and Environmental Protection sufficient funds, not to exceed thirty-seven thousand five hundred dollars for the fiscal year to carry out the provisions of sections 22-91a to 22-91f, inclusive, and to said department a sum, not to exceed four thousand dollars for the fiscal year to spray such state-owned roadside land as is certified to be infested.