The use of methyl substituted chiral synthons in the synthesis of pine sawflies pheromones

Tetrahedron ◽  
1988 ◽  
Vol 44 (20) ◽  
pp. 6407-6418 ◽  
Author(s):  
Marc Larcheveque ◽  
Caroline Sanner ◽  
Robert Azerad ◽  
Didier Buission
Keyword(s):  
Pine Sawflies

scholarly journals Sex pheromone of pine sawflies.

1990 ◽  
Vol 64 (11) ◽  
pp. 1741-1744 ◽  
Author(s):  
Akira TAI
Keyword(s):  
Sex Pheromone ◽  
Pine Sawflies

Influence of temperature on larval defecation and its use in estimating canopy population size of pine sawflies (Hymenoptera: Diprionidae)

1993 ◽  
Vol 83 (2) ◽  
pp. 245-249 ◽  
Author(s):  
J. Simandl
Keyword(s):  
Population Size ◽  
Larval Density ◽  
Test Species ◽  
Influence Of Temperature ◽  
Diprion Pini ◽  
Pine Sawflies ◽  
Air Temperatures ◽  
Influence Of Temperature On ◽  
Gilpinia Frutetorum ◽  
Macrodiprion Nemoralis

AbstractThe frequency of defecation in relation to constant0/simulated outdoor temperatures and larval age (instar) was examined under laboratory conditions in four species of pine sawflies (Diprionidae): Gilpinia frutetorum (Fabricius), Diprion pini (Linnaeus), D. similis (Hartig) and Macrodiprion nemoralis (Enslin). Defecation interval and total faecal production was regular under higher constant temperatures (higher production in younger instars, second and third) and production significantly decreased under varying air temperatures during the same period (24 hours) when larvae of younger instars were influenced more by lower temperatures. The influence of larval age (instar) on faecal production was insignificant if larvae were exposed to varying temperatures during 24 hours. Faecal production and temperature were positively correlated in each of the four species and instars tested, as well as in total (all the test species and instars combined). Implications of the results for estimating canopy larval density by frass-drop measurements in the field are briefly discussed.

Sex pheromone perception in male pine sawflies, Neodiprion sertifer (Hymenoptera; Diprionidae)

1991 ◽  
Vol 168 (5) ◽  
pp. 533-538 ◽  
Author(s):  
B. S. Hansson ◽  
J. N. C. Van der Pers ◽  
H. -E. Högberg ◽  
E. Hedenström ◽  
O. Anderbrant ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Neodiprion Sertifer ◽  
Pine Sawflies ◽  
Pheromone Perception

The Biology of Microplectron fuscipennis, Zett. (Chalcid.), a Parasite of the Pine Sawfly (Diprion sertifer, Geoff.)

1935 ◽  
Vol 26 (3) ◽  
pp. 407-418 ◽  
Author(s):  
K. R. S. Morris ◽  
E. Cameron
Keyword(s):  
Host Material ◽  
Rapid Rate ◽  
Full Account ◽  
Pine Sawfly ◽  
Pine Sawflies ◽  
Large Numbers ◽  
Rate Of Increase ◽  
Primary Parasite

Cocoons of Diprion sertifer, Geoffr., containing nearly eight millions Microplectron fuscipennis, Zett., were collected in Europe in 1934 and despatched to Canada for the control of the Spruce Sawfly, Diprion polytomum, Htg.This parasite is widely distributed throughout Europe as a primary parasite of several species of pine sawflies of the genus Diprion.A full account of the biology and a detailed description of the various stages is given.In the laboratory it was reared in large numbers on the cocoons of D. polytomum from Canada.Its chances of success in Canada depend on its acclimatisation and the accessibility and quantity of host material. Its tremendous fecundity and rapid rate of increase are greatly in its favour.

Geographic variation in the field response of male European pine sawflies, Neodiprion sertifer, to different pheromone stereoisomers and esters

2000 ◽  
Vol 95 (3) ◽  
pp. 229-239 ◽  
Author(s):  
O. Anderbrant ◽  
J. Lofqvist ◽  
H.-E. Hogberg ◽  
E. Hedenstrom ◽  
N. Baldassari ◽  
...  
Keyword(s):  
Geographic Variation ◽  
Neodiprion Sertifer ◽  
Pine Sawflies ◽  
Field Response

Effects of Temperatures of Rearing on Reproduction of Aptesis basizona (Grav.) (Hymenoptera: Ichneumonidae)

1961 ◽  
Vol 93 (9) ◽  
pp. 799-801 ◽  
Author(s):  
Thelma Finlayson
Keyword(s):  
Cold Storage ◽  
Reproductive Capacity ◽  
Neodiprion Sertifer ◽  
Immature Stages ◽  
Pine Sawfly ◽  
Pine Sawflies ◽  
European Pine Sawfly

Aptesis basizona (Grav.), a parasite of pine sawflies in Europe, was propagated at Belleville, Ont. (Green, 1938) for release against the European spruce sawfly, Diprion hercyniae (Htg.), the European pine sawfly, Neodiprion sertifer (Geoff.) and other Diprionidae. Development of the insects in the laboratory was allowed to continue until feeding was completed and cocoons were spun, and was then retarded by placing the insects in cold storage pending shipment to release areas. Frequently stock for propagation was incubated after a period of cold storage, and occasionally the schedule was interrupted by decreases in the reproductive capacity of the adults. It seemed that there was some relationship between the fertility of the adults and the temperatures at which the immature stages were held, both while feeding and after they had reached the fully-fed stage. Experiments were initiated to investigate this hypothesis.

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