scholarly journals Defoliation by the common pine sawfly (Diprion pini) and subsequent growth reduction in Scots pine: a retrospective approach

Silva Fennica ◽  
2005 ◽  
Vol 39 (4) ◽  
Author(s):  
Timo Kurkela ◽  
Tarmo Aalto ◽  
Martti Varama ◽  
Risto Jalkanen
Keyword(s):  
Scots Pine ◽  
Growth Reduction ◽  
Subsequent Growth ◽  
Diprion Pini ◽  
Pine Sawfly ◽  
The Common

scholarly journals Efficacy of Mospilan 20 SP and Trebon 30 EC in the protection of Scots pine Pinus silvestris L. against the common pine sawfly Diprion pini L.

2015 ◽  
Vol 57 (1) ◽  
pp. 3-10
Author(s):  
Barbara Głowacka ◽  
Cezary Bystrowski
Keyword(s):  
Scots Pine ◽  
Plant Protection ◽  
Larval Mortality ◽  
Plant Protection Products ◽  
Pinus Silvestris ◽  
Diprion Pini ◽  
Pine Sawfly ◽  
Spray Solution ◽  
Study Results ◽  
The Common

Abstract The study was carried out to evaluate the possibilities to control the common pine sawfly Diprion pini L. with the use of plant protection products Mospilan 20 SP (20% acetamipryd) and Trebon 30 EC (300 g etofenprox/l). Aerial insecticide treatments were applied onto experimental plots (100 ha) in Scots pine stands, sprayed with approximately 3 l of spray solution/ha. Mospilan 20 SP at a rate 0.20 kg/ha caused 61%-76% mortality of D. pini larvae, whereas at a rate 0.25 kg/ha – 100% larval mortality. Trebon 30 EC aerial treatments at a rate 0.2 l/ha resulted in 100% larval mortality. Study results will be enclosed in the procedure of registration of the plant protection products for use in forestry.

scholarly journals Influence of soil and topography on defoliation intensity during an extended outbreak of the common pine sawfly (Diprion pini L.)

2017 ◽  
Vol 10 (1) ◽  
pp. 164-171 ◽  
Author(s):  
M Kosunen ◽  
T Kantola ◽  
M Starr ◽  
M Blomqvist ◽  
M Talvitie ◽  
...  
Keyword(s):  
Diprion Pini ◽  
Pine Sawfly ◽  
The Common

scholarly journals Adaptive Cluster Sampling in Inventorying Forest Damage by the Common Pine Sawfly (Diprion pini)(Multipurpose Forest Management)

2011 ◽  
Vol 16 (Special_Issue) ◽  
pp. 141-147
Author(s):  
Mervi Talvitie ◽  
Tuula Kantola ◽  
Markus Holopainen ◽  
Paivi Lyytikainen-Saarenmaa
Keyword(s):  
Forest Management ◽  
Forest Damage ◽  
Cluster Sampling ◽  
Adaptive Cluster Sampling ◽  
Special Issue ◽  
Diprion Pini ◽  
Pine Sawfly ◽  
The Common

scholarly journals Heavy metal concentrations in males and females of three pine diprionids (Hymenoptera)

1990 ◽  
Vol 1 (3) ◽  
pp. 175-179 ◽  
Author(s):  
Kari Heliövaara ◽  
Rauno Väisänen ◽  
Eero Kemppi ◽  
Martin Lodenius
Keyword(s):  
Heavy Metal ◽  
Scots Pine ◽  
Neodiprion Sertifer ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Diprion Pini ◽  
First Instar ◽  
Unpolluted Site ◽  
Males And Females

Heavy metal concentrations (Cu, Fe, Ni, Cd) in the cocoons of three gregarious pine diprionids, Gilpinia socia, Diprion pini and Neodiprion sertifer, were compared between the species and sexes. The sawflies were reared in the laboratory in colonies from the first instar larvae, being fed on Scots pine (Pinus sylvestis) needles collected from a heavily polluted or a relatively unpolluted site. The levels of copper, iron and nickel were two to three times as high in N. sertifer as in the two other species. Cadmium showed bioaccumulation in all three species. In N. sertifur and G. socia reared on polluted needles, the metal concentrations were higher in males than in females.

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