Fig 1.
Dynamics of woolly apple aphid populations on different parts of apples, in an apple orchard in Laiyang, Shandong Province, China, in (A) 2008 and (B) 2009.
Fig 2.
(A) Numbers and (B) area (cm2) of aphid colonies per part on various plant parts on 15 apple varieties, in an apple orchard in Qingdao, Shandong Province, China, in June 20, 2010.
Table 1.
Comparison of EPG parameters of woolly apple aphid, Eriosoma lanigerum, during non-phloem feeding on four parts of apple trees (var. Starkrimson).
Table 2.
Comparison of EPG parameters of woolly apple aphid Eriosoma lanigerum during phloem feeding on four different apple parts.
Fig 3.
The percentage of various waveforms’ (average duration) of per aphid (Eriosoma lanigerum) feeding on different parts of apple tree for eight hours.