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Figure 2 | SpringerPlus

Figure 2

From: Phyllopertha horticola (Coleoptera: Scarabaeidae) larvae in eastern Austrian mountainous grasslands and the associated damage risk related to soil, topography and management

Figure 2

Annual weather conditions and the occurrence of grub damage since 2000 in region 1. Mean air temperature, mean precipitation sum and mean drought index (PDSI) during adult flight and main larval feeding period (May – September) of Phyllopertha horticola (Scarabaeidae), measured at the ZAMG weather station in Fischbach (47°27'N, 15°53'E, 1050 m above sea level; ZAMG 2014), as well as the number of investigated farms in sampling region 1 (near Fischbach, 9 farms in total) that reported grub damages in the respective year (grey bars); solid black line with black circles = annual mean air temperatures, solid grey line with white circles = annual precipitation sums, dashed black line = mean air temperature from 1971 to 2000 (May – September), dotted grey line = mean precipitation sum from 1971 to 2000 (May – September), dotted black line with white squares = annual Palmer Drought Severity Index (PDSI), ranging from +5 = extreme wetness to −5 = extreme drought.

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