wingless females host:www.extento.hawaii.edu

Listing 1 - 10 from 13 for wingless females

Brevicoryne brassicae
... cabbage aphid and Myzus persicae (green peach aphid). Both apterae (wingless) and alate (winged) aphids are able to transmit the virus ... in appearance to adults except for their smaller size. ADULTS Wingless females are 1/10 inch long and somewhat oval in shape. ... increase in size toward the posterior end. Winged females, somewhat smaller than the wingless forms, are not covered with waxy powder. The ...
www.extento.hawaii.edu

Lipaphis erysimi
... length of 8-9 days total. Minor variations in these durations occur between winged and wingless forms when raised on cabbage, cauliflower, mustard and radish (Sachan and Bansal, 1975). Refer to ... that wingless females produce 70-87 young in their lifetime, while winged females produce 31-40 young. Male aphids are olive-green to brown in color. They are considerably smaller than the females and ...
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Rhopalosiphum maidis
... strain), onion-yellow-dwarf virus and papaya ringspot virus. BIOLOGY Populations are primarily composed of females that reproduce without mating. They do not lay eggs but instead birth live young. ... There are differences in the numbers of nymphs produced and lifespan of winged and wingless females. At 77û F wingless females produced an average of 68 nymphs (range = 57 - 77). Winged aphids produced ...
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Monomorium floricola
... throughout their lives. Males are usually short-lived and function only in reproduction. Workers are females which tend all stages of juvenile ants, construct and maintain nests, and forage for food ... small, only about 1.5 mm (1/16 in) (Huddleston et al. 1968). They are wingless with smooth, shining blackish-brown head and abdomen and with lighter, yellowish thorax (Huddleston & Fluker ...
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Paratrechina vaga
... only in reproduction. Workers are females which tend all stages of juvenile ants, construct and maintain nests, and forage for food. Adult workers of P. vaga are wingless, with dark brown thorax ...
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Technomyrmex albipes
... to workers, a condition in ants referred to as ergatomorphic (Wheeler 1910). Adult workers are wingless, medium-sized, dull black ants 2 to 4 mm long (less than 1/4 in ... al 1968). Adults recently emerged from the pupal stage are paler (Wheeler 1910). Workers are females which tend all stages of juvenile ants, construct and maintain nests, and forage for food ...
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Aphis gossypii
... Francki, et. al., 1979). The melon aphid also vectors Celery Mosaic Virus. Both apterae (wingless) and alate (winged) aphids are able to transmit viruses. Nonpersistent transmission occurs when ... paler in high temperatures. Adult females produce 8-22 young per day. BEHAVIOR Melon aphid adults are generally wingless. Adult aphids generally remain wingless until high population densities are reached ...
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Hyperomyza lactucae
... female nymphs. As a consequence of this type of reproduction, populations are composed solely of females and there are no males present. Generations are continuous throughout the year in Hawaii. Eggs ... total development time in the nymphal period requires 9 to 12 days. Nymphs resemble the wingless adults except for their smaller size. Adults Non-winged adults are opaque green aphids with ...
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Macrosiphum euphorbiae
... nymphs. As a consequence of this type of reproduction, populations are composed solely of females and there are no males present. EGGS In temperate regions, these aphids overwinter during ... individuals are produced. These individuals emigrate to new hosts. The production of winged versus wingless individuals is dependent on the day length, parent type, "generation" and temperature (MacGillivary and ...
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Myzus persicae
... Turnip Mosaic Virus is also vectored by this aphid. Both apterae (wingless) and alate (winged) aphids are able to transmit the virus but more transmissions are obtained with wingless forms (Toba, 1962). BIOLOGY There are many generations of this ... 1964). Reproduction in Hawaii does not involve mating and egg laying. Females give birth to live female nymphs. As a consequence of ...
www.extento.hawaii.edu