NATURAL ENEMIES OF THE OAK SCALE INSECT, EULECANIUM CILIATUM (DOUGLAS) (HEMIPTERA: COCCIDAE) IN TURKEY

NATURAL ENEMIES OF THE OAK SCALE INSECT, EULECANIUM CILIATUM (DOUGLAS) (HEMIPTERA: COCCIDAE) IN TURKEY. Eulecanium ciliatum Douglas is an important pest of ornamental plants in the Palaearctic region and has a wide range of natural enemies. In Ankara, Turkey, eight hymenopterous parasitoids and one hyperparasitoid species have been bred from this scale, and nine predators were collected in association with it, seven Coleoptera and two Hemiptera. Key words: urban, ornamental plantings, parasitoid hosts, predator hosts, Aphelinidae, Encyrtidae, Eulophidae, Pteromalidae, Anthribidae, Coccinellidae, Cybocephalidae, Miridae

FAUNISTIC STUDIES ON THE COCCIDAE ON ORNAMENTAL PLANTS IN ANKARA, TURKEY

FAUNISTIC STUDIES ON THE COCCIDAE ON ORNAMENTAL PLANTS IN ANKARA, TURKEY. The coccid species present in parks, gardens and greenhouses in Ankara, Turkey, and their host plants were studied in 1992, ‘94, ‘95 and ‘96. Thirteen species of Coccidae were detected on ornamental plants: two species of Eulecanium, four species of Parthenolecanium and one species each from the genera Coccus, Filippia, Palaeolecanium, Physokermes, Pulvinaria, Saissetia and Sphaerolecanium. The most common species was Parthenolecanium corni, found on 36% of the infested ornamental plants. Physokermes picea was found on four species of Picea, of which it infested 16.3% of the plants surveyed. Filippia follicularis was detected on 2% of Fraxinus spp. while Physokermes piceae, Filippia follicularis, Parthenolecanium persicae and P. pomeranicum were recovered on 16, 2, 1 and 1% of the infested plants respectively. Key words: Coccoidea, Coccidae, urban, ornamental plantings, hosts, geographic distribution

STUDIES ON THE BIOLOGY OF EULECANIUM CILIATUM (DOUGLAS) (HEMIPTERA: COCCIDAE) IN ANKARA, TURKEY

STUDIES ON THE BIOLOGY OF EULECANIUM CILIATUM (DOUGLAS) (HEMIPTERA: COCCIDAE) IN ANKARA, TURKEY. Eulecanium ciliatum Douglas is a common pest species on Aceraceae and Rosaceae in Ankara province, Turkey. Its biology was investigated on Acer campestre, A. pseudoplatanus, Crataegus monogyna and C. oxyacantha in 1995-1996. E. ciliatum had one generation a year and overwintered as the 2nd-instar nymph. The number of eggs laid per female depended on the host, with the greatest number of eggs being laid on A. pseudoplatanus, on which it had the densest populations. The 1st-instar nymphs were found on both leaf surfaces but they preferred the upper surface. The 2nd-instar nymphs preferred sites on branches on the north-east side of the host trees. The sex ratio varied between 1.5 and 3.8¢:1TM. Key words: Palaearctic, life cycle, ecology, host plants, settling sites, migration, Formica cunicularia, Camponatus aethiops, Plagiolepis vindobonensis, Anthribus fasciatus, urban entomology, Brunton compass, predator

A new species of Poliaspoides MacGillivray (Hemiptera, Diaspididae) on Bambusa siamensis (Poaceae) imported into Turkey Zootaxa

The adult female and first-instar nymph of a new species of armoured scale insect, Poliaspoides bambusae sp.n. (Diaspididae), is described and illustrated. The new species was collected in Turkey on imported ornamental Bambusa siamensis (Poaceae) from an unknown source. Key words: armoured scale insects, bamboo, Turkey, Asi

Scale insects of the conifer trees in Turkey and their zoogeographical distribution

WOS: 000222303600007In Turkey, 25 species of Coccoidea (Homoptera) are recorded on Conifera tree species. The family Diaspididae has 15, Coccidae 6, Pseudococcidae 3, and Margarodidae I species. Specifically, Dynaspidiotus spp. are recorded on Abies, Cedrus, Picea, and Pinus; Leucaspis spp. on Pinus spp.; Carulaspis spp. on Biota, Cupressus, Juniperus, and Thuja; Lepidosaphes spp. on Abies, Biota, Juniperus, and Picea; Coccus spp. on Abies, Cedrus, and Pinus; and Planococcus spp. on Cupressus, Juniperus, and Pinus species. Acanthomytilus cedricola is recorded only on Cedrus spp.; Physokerines piceae on Abies and Picea species, and Marchalina hellenica only on Pinus species. Two species are Native, five are Cosmopolitan, 15 are Palaearctic, and 3 are of Mediterranean origin

Feeding behavior of Cryptolaemus montrouzieri mealybugs parasitized by Anagyrus pseudococci

The citrus mealybug Planococcus citri (Risso) and the vine mealybug Planococcus ficus (Signoret) (Hemiptera: Pseudococcidae) are two worldwide polyphagous pests of citrus, vineyards and ornamental plants in greenhouses. Biological control of these pests may rely on the combined release of parasites and predators, which can be affected by intraguild predation (IGP). This Study investigated the feeding behavior of different stages of Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae) on mealybugs parasitized by Anagyrus pseudococci (Girault) (Hymenoptera: Encyrtidae) 2, 4, 6, 8 and 10 days. The study was conducted in a climate-controlled room at 28 +/- 1 degrees C, 16L:81), and 65 +/- 10% r.h. The highest consumption values for all stages of C. montrouzieri occurred with 2- and 4-day parasitized mealybugs, whereas the predator did not feed on either species of mealybug parasitized for longer periods, due to the onset of mummification