Claim · model-written summary
The authors recommend protective measures only if cool, wet and cloudy weather persists during summer.
- Taxon
- black spruce
Picea marianat0 - Outcome
- protective measurese2
- Qualifier
- necessary only if frequent or prolonged periods of below-average temperatures and wet cloudy weather occure2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Environmental factors affecting Sirococcus shoot blight of black spruce”
e2“protective measures are necessary only if frequent or prolonged periods of below-average temperatures and wet cloudy weather occur during the summer months”
Title
Environmental factors affecting Sirococcus shoot blight of black spruce
R. E. Wall; L. P. Magasi Canadian Journal of Forest Research 1976. doi:10.1139/x76-060
Other claims from this paper (9)
- Observation Conidial germination and mycelial growth of Sirococcus occurred between 5 and 30 °C.
- Observation The Sirococcus fungus survived temperatures of −10 °C for several weeks.
- Observation Temperatures of 35 °C were lethal to Sirococcus spores and mycelium.
- Intervention effect Light did not measurably affect Sirococcus conidial germination and mycelial growth.
- Observation Sirococcus infection of black spruce seedlings occurred when inoculated seedlings were enclosed in plastic bags for at least 1 day.
- Intervention effect Sirococcus infection was greatest under a daily temperature cycle of 16–21 °C, compared with 10–16 °C.
- Intervention effect Sirococcus infection was significantly reduced at 24–30 °C.
- Intervention effect Sirococcus infection percentage was greater under low light intensities (900–3900 lx) than under high light intensities (4300 – 10 000 lx).
- Observation Warm sunny weather during the period of susceptibility would probably control Sirococcus shoot blight.