DIN EN 49-1:2016-11, Holzschutzmittel_- Bestimmung der vorbeugenden Wirkung gegenüber Anobium punctatum (De Geer) durch Beobachten der Eiablage und des Überlebens von Larven_- Teil_1: Oberflächenverfahren (Laboratoriumsverfahren); Deutsche Fassung EN_49-1:2016

2016 ◽  
Keyword(s):  
1964 ◽  
Vol 54 (4) ◽  
pp. 797-803 ◽  
Author(s):  
Jean M. Taylor

A description is given of the life-cycle in Britain of Theocolax formiciformis Westw. (Pteromalidae), a parasite of Anobium punctatum (Deg.) (Anobiidae). Adults emerge from infested wood in large numbers from April to June. Eggs are laid through the wood surface and use was made of this habit as a means of rearing this parasite under observation in the laboratory. Anobium larvae were placed individually in channels gouged in the surface of 3-inch squares of plywood. They were covered with tracing paper and the parasites were caged on this by means of a glass ring covered with a glass plate. Development from egg to adult at 22 and 25°C., and 75 per cent, relative humidity, averaged about five and six weeks, respectively, compared with 12 weeks outdoors in summer. The number of progeny per female was highest (approximately five) at 22°C., at which the ratio of males to females was 1:3. Only about one per cent, of the adults reared were winged. The use of Theocolax as a biological-control agent is not considered practical.


1964 ◽  
Vol 55 (2) ◽  
pp. 305-311 ◽  
Author(s):  
D. Spiller

The number of eggs produced by females of Anobium punctatum (Deg.) (Col., Anobiidae) was determined at Auckland, New Zealand, during annual emergence in December 1957. The females were collected before mating and egg-laying occurred. Each female was weighed and then confined, with males, to an egg-laying block of sapwood of Podocarpus dacrydioides. The average number of eggs per female was 54·8, far higher than obtained from field-collected females, and additionally the egg-laying distribution was neither skewed nor censored. Following a short preoviposition period, eggs were laid rapidly, egg-laying being virtually finished by the 15th day after emergence. Females lived a few days after egg-laying had ceased, maximum length of life being between 24 and 31 days.For about 60 per cent, of females the number of eggs laid was closely related to the initial weight of the female, but the remaining females laid fewer eggs in relation to their weight.


1953 ◽  
Vol 43 (4) ◽  
pp. 587-590 ◽  
Author(s):  
J. D. Bletchly

External characters enabling the sexes to be distinguished readily in the adult Anobium punctatum (Deg.), popularly known as the common furniture beetle, have been described by Kelsey & others (1945) but no account has yet been published of the external sex characters of the pupae of this Anobiid. In the course of research at the Forest Products Research Laboratory on the biology of this species, a series of larvae in the prepupal stage and of pupae have been examined to determine whether the sexes can easily be recognised in the immature stage. Sex determination, before the adult stage is reached, is of great value for expermental work on breeding techniques and other projects.


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