scholarly journals Improved Outbreak Prediction for Common Pine Sawfly (Diprion pini L.) by Analyzing Floating ‘Climatic Windows’ as Keys for Changes in Voltinism

Forests ◽  
2017 ◽  
Vol 8 (9) ◽  
pp. 319 ◽  
Author(s):  
◽  
◽  
◽  
Keyword(s):  
Diprion Pini ◽  
Pine Sawfly

scholarly journals Diprion pini L. (Hymenoptera, Symphyta, Diprionidae) population dynamics in the Low Dnieper region

2019 ◽  
Vol 61 (1) ◽  
pp. 22-29 ◽  
Author(s):  
Valentyna Meshkova ◽  
Serhii Nazarenko ◽  
Maryna Kolienkina
Keyword(s):  
Regional Scale ◽  
Steppe Zone ◽  
Graphical Analysis ◽  
Diprion Pini ◽  
Pine Sawfly ◽  
Pine Sawflies ◽  
Two Generations ◽  
The Sixties ◽  
Analysis Of Dynamics ◽  
European Pine Sawfly

Abstract Pine sawflies (Hymenoptera, Symphyta, Diprionidae) are the most spread foliage browsing insects of pine forests in Europe, especially monovoltinous European pine sawfly Neodiprion sertifer (Geoffroy, 1785) and common pine sawfly Diprion pini (Linnaeus, 1758), which develops in one or two generations per year depending on weather. The outbreaks of both pine sawflies are the most frequent and intensive in the Steppe zone of Ukraine, especially in the Low Dnieper region, where pine forest (Pinus sylvestris Linnaeus and Pinus pallasiana D. Don) was planted on moving sands in the sixties of the 20th century. This research is aimed at the evaluation of the parameters for D. pini outbreak dynamics in the Low Dnieper region. Outbreak severity, specific foci area and mean score of stand threat by D. pini were evaluated from the regional statistical reports. In the regional scale for 1979–2017, notable outbreaks of D. pini were registered in 1982, 1993, 2002, 2006 and 2017. An interval between maximums was from 4 to 11 years, in average 9 years. The growth of foci area in 1979–1998 as compared to 1999–2017 as well as correlation between pine stand area and annual area of this pest’s foci in different forests was not statistically significant. Graphical analysis of dynamics of D. pini focal area for 2010–2017 was done based on individual threat levels. Our study confirms the fact of three outbreaks for this period in three forest and hunting enterprises (FHE), two outbreaks in one FHE and one outbreak in one FHE. An interval between the outbreaks makes three or six years. The causes of such shortening of interval are discussed.

Release of sex pheromone and its precursors in the pine sawfly Diprion pini (Hym., Diprionidae)

Chemoecology ◽  
2005 ◽  
Vol 15 (3) ◽  
pp. 147-151 ◽  
Author(s):  
Olle Anderbrant ◽  
Fredrik Östrand ◽  
Gunnar Bergström ◽  
Ann-Britt Wassgren ◽  
Marie-Anne Auger-Rozenberg ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Diprion Pini ◽  
Pine Sawfly

Random pattern of parasitism and female-biased sex ratio in the egg parasitoid Neochrysocharis formosa attacking the pine sawfly Diprion pini in mountain forests of Spain

2017 ◽  
Vol 45 (1) ◽  
pp. 85-93
Author(s):  
Jesús Selfa ◽  
Carlo Polidori ◽  
Josep Daniel Asís ◽  
Luis De Pedro ◽  
Juli Pujade-Villar ◽  
...  
Keyword(s):  
Sex Ratio ◽  
Egg Parasitoid ◽  
Random Pattern ◽  
Mountain Forests ◽  
Diprion Pini ◽  
Pine Sawfly ◽  
Neochrysocharis Formosa ◽  
Biased Sex Ratio

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
Sign in / Sign up

Export Citation Format

Share Document