Plant Protection Bulletin (Taipei) (2005) 47, 1-14

C.T. Lu and T.H. Su (2005)
[Effect of low-temperature storage of eggs on the biological characters of Mallada basalis (Neuroptera: Chrysopidae)]
Plant Protection Bulletin (Taipei) 47 (1), 1-14
Abstract: In the laboratory, eggs of the lacewing (Mallada basalis (Walker)) were stored at 8 constant temperatures.No hatching was found at 4, 8, or 32 °C, while the hatching rates at 12, 16, 20, 24 and 28 °C were 43.3 %, 82.5 %, 87.5 %, 86.7 %, and 91.7 %, respectively. When 1-day-old eggs of M. basalis were stored at 4, 8, 12, and 16°Cfor 7 days and then transferred to 28 °C, the hatching rates were 11.7 %, 17.5 %, 79.2 %, and 78.3 %, respectively. The survival rates of the 1st, 2nd, and 3rd instar larvae stored at 12 °C were 98.1 %, 92.3 %, and 82.7 %, while those stored at 16 °C were 96.7 %, 95.0 %, and 95.0 % . The emergence rates at 12 and 16 °C were 42.1 %and 69.5 %, respectively. The egg production at 16 °C was 416.1 eggs/female which was higher than for any of the other treatments. The hatching rate of females was 65.0 %for the 12 °C treatment and 66.7 %for the 16 °C treatment. The daily weight consumed by 3rd instar larvae of M. basalis raised from 1-day-old eggs stored at 4, 8, 12, and 16 °C for 7 days were 2.4, 2.3, 7.9, and 7.1 mg. There were no significant differences among the 12, 16, and(control) 28 °C treatments.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
formulation/storage of bioagents

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Mallada basalis (predator)			Taiwan