laboratory evaluation of pauesia antennata (hymenoptera: braconidae), specific parasitoid of pterochloroides persicae (hemiptera: aphididae)

host stage preference and age-specific functional response of praon volucre (hymenoptera: braconidae, aphidiinae) a parasitoid of acyrthosiphon pisum (hemiptera: aphididae)

the pea aphid, acyrthosiphon pisum (harris) is one of the most important pests of pea throughout the world.host stage preference under choice and no-choice tests and age-specific functional response of praon volucre (haliday) parasitizing a. pisum were investigated. the experiments were carried out under laboratory conditions at 25 ± 1 °c, 60 ± 5% rh and a photoperiod of 14: 10 h (l: d). functi...

The sexuales of giant black bark aphid, Pterochloroides persicae (Hemiptera, Aphidoidea: Lachninae).

The oviparous female and male of the giant black bark aphid Pterochloroides persicae (Cholodkovsky) are described and illustrated for the first time. Notes on distribution, biology and host plants are presented.

Use of Rubidium to Label Lysiphlebus testaceipes (Hymenoptera: Braconidae), a Parasitoid of Greenbugs (Homoptera: Aphididae), for Dispersal Studies

Greenhouse Trials of Aphidius Colemani (hymenoptera: Braconidae) Banker Plants for Control of Aphids (hemiptera: Aphididae) in Greenhouse Spring Floral Crops

Banker plants with Aphidius colemani Viereck were tested in greenhouses in Massachusetts and New York for control of cotton aphid Aphis gossypii Glover, and green peach aphid Myzus persicae (Sulzer) on 2 spring flower crops, pansies ( Viola tricolor hortensis ) and Marguerite daisies ( Argyranthemum hybrid). Banker plants consisted of pots of barley plants infested with the bird cherry-oat aphi...

defense reactions of the grape aphid, aphis illinoisensis (hemiptera: aphididae) to parasitoid species lysiphlebus testaceipes (hymenoptera: braconidae) and aphelinus albipodus (hymenoptera: aphelinidae)

developmental periodsof thegrapevine aphid, aphis illinoisensis shimer (hemiptera: aphididae) on the grape, vitis vinifera l., and its two parasitoid species, lysiphlebus testaceipes (cresson) (exotic) (hymenoptera: braconidae: aphidiinae) and aphelinus albipodus hayat and fatima (indigenous) (hymenoptera: aphelinidae) were studied at two constant temperatures (20 and 25 ± 2 oc), 70 ± 5 % r.h. ...

Cryptic Species of Parasitoids Attacking the Soybean Aphid (Hemiptera: Aphididae) in Asia: Binodoxys communis and Binodoxys koreanus (Hymenoptera: Braconidae: Aphidiinae)

Collections of parasitoids attacking the soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), in South Korea yielded specimens that were originally identiÞed as Binodoxys communis (Gahan) (Hymenoptera: Braconidae). We report here on laboratory studies indicating that this population is actually a previously unknown species of Binodoxys. Four classes of comparisons weremade between th...