Investigations on the incidence of Matsucoccus josephi and its predators and other associates on pines (Pinus spp.) in Turkey, Cyprus and Israel are reported. The hypothesis is confirmed that the presence of the predatory anthocorids Elatophilus spp. in pine forests in Turkey and Cyprus is evidence of the occurrence of Matsucoccus spp. M. josephi, which was believed to be endemic to Israel on P. halepensis, is shown to have an eastern Mediterranean distribution, since it occurs throughout the distribution area of P. brutia subsp. brutia in western Turkey and Cyprus. In western Turkey, population densities on P. brutia are very low, but those on P. halepensis cause severe decline, suggesting that stands of this pine are not natural relicts but are the result of introductions by man. In Cyprus, densities of the margarodid on P. brutia are higher than in Turkey, yet injury is rarely seen. Resistance to M. josephi is displayed by stands of P. halepensis from introgressed seed, and of artificial hybrids whose male parent is P. brutia. The relative abundance of predators and associates of the margarodid in the 3 countries is discussed.
Investigations on the incidence of Matsucoccus josephi and its predators and other associates on pines (Pinus spp.) in Turkey, Cyprus and Israel are reported. The hypothesis is confirmed that the presence of the predatory anthocorids Elatophilus spp. in pine forests in Turkey and Cyprus is evidence of the occurrence of Matsucoccus spp. M. josephi, which was believed to be endemic to Israel on P. halepensis, is shown to have an eastern Mediterranean distribution, since it occurs throughout the distribution area of P. brutia subsp. brutia in western Turkey and Cyprus. In western Turkey, population densities on P. brutia are very low, but those on P. halepensis cause severe decline, suggesting that stands of this pine are not natural relicts but are the result of introductions by man. In Cyprus, densities of the margarodid on P. brutia are higher than in Turkey, yet injury is rarely seen. Resistance to M. josephi is displayed by stands of P. halepensis from introgressed seed, and of artificial hybrids whose male parent is P. brutia. The relative abundance of predators and associates of the margarodid in the 3 countries is discussed.