| epizootiology of a nuclear polyhedrosis virus in european spruce sawfly (gilpinia hercyniae): the rate of passage of infective virus through the gut of birds during cage tests. | | 1978 | 355558 |
| tumorlike bodies in virus-infected and noninfected adults of the spruce sawfly, diprion hercyniae. | | 1968 | 5649245 |
| the chemistry of insect hemolymph; organic components of the hemolymph of the silkworm, bombyx mori, and two other species. | 1. hemolymph was collected for analysis from the silkworm, bombyx mori, in a series of developmental stages ranging from the second molt to the late pupa. the mean ph of larval hemolymph after collection was found to be 6.45, that of pupal hemolymph, 6.57; in vivo values may be slightly lower. total dry solids ranged from 5.4 to 10.6 per cent. total protein ranged from 1.2 to 5.3 per cent, increasing rapidly during the fifth instar. 2. free amino acids were separated chromatographically and esti ... | 1956 | 13346040 |
| intra-tree variation in foliage quality drives the adaptive sex-biased foraging behaviors of a specialist herbivore. | some herbivorous insects enhance their fitness using foraging strategies that allow them to find and colonize the best of available resources within heterogeneous plants. the yellowheaded spruce sawfly, pikonema alaskensis (roh.) (hymenoptera: tenthredinidae), is a common defoliator that oviposits and feeds on the developing foliage of young open-grown black spruce [picea mariana (mills) b.s.p.]. while female and male eggs are both laid throughout the crown, most eggs laid in the upper crown are ... | 2010 | 20422222 |