Elusively overwintering: a review of diamondback moth (Lepidoptera: Plutellidae) cold tolerance and overwintering strategy
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چکیده
منابع مشابه
Overwintering Strategy and Mechanisms of Cold Tolerance in the Codling Moth (Cydia pomonella)
BACKGROUND The codling moth (Cydia pomonella) is a major insect pest of apples worldwide. Fully grown last instar larvae overwinter in diapause state. Their overwintering strategies and physiological principles of cold tolerance have been insufficiently studied. No elaborate analysis of overwintering physiology is available for European populations. PRINCIPAL FINDINGS We observed that codling...
متن کاملFirst record of diamondback moth (Lepidoptera: Plutellidae) from interior Alaska
—The diamondback moth (Plutella xylostella [L.]), is one of the most economically important pests of cruciferous plants throughout the world, causing economically significant damage in broccoli, cabbage, canola, collards, and mustard. In Canada, P. xylostella is an important economic pest of canola (Brassica napus L. and Brassica rapa L.). In North America, the diamondback moth has been collect...
متن کاملEvaluating trap crops for diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae).
Potential trap crops for the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), were evaluated through a series of ovipositional preference and larval survival experiments in outdoor screenhouses in 2002 and 2003. Hosts examined as trap crops were glossy and waxy collards, Brassica oleracea L. variety acephala; Indian mustard, Brassica juncea (L.) Czern; and yellow rocket, B...
متن کاملCold tolerance and trehalose accumulation in overwintering larvae of the codling moth, Cydia pomonella
Seasonal variations in the supercooling point, survival at low temperatures and sugar content were studied in fieldcollected codling moth larvae. The supercooling point of field-collected larvae decreased significantly from a mean value of –13.4°C in August 2004 (feeding larvae) to –22.0°C in December 2004 (overwintering larvae). Survival at –20°C/24 h was 0% during early autumn, whereas it inc...
متن کاملOverwintering and Cold Tolerance of the Mermithid Filipjevimermis leipsandra.
Overwintering survival of Filipjevimermis leipsandra postparasitic adults ranged from 12 to 15% over 2 years. Nematodes recovered from biweekly samples oviposited within a week when exposed to warm temperatures. More nematodes were recovered from the lower portions of soil cores than from the upper. In laboratory tests of cold tolerance, the LD at -5 C was 5.5 hours, whereas exposure to -2 C fo...
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ژورنال
عنوان ژورنال: The Canadian Entomologist
سال: 2018
ISSN: 0008-347X,1918-3240
DOI: 10.4039/tce.2018.2