Assertion: hemlock's needle | /r/AtLocation | tree
Facets:
value: in the spring
type: TEMPORAL
Source sentences:
text: If a dormant oil (a horticultural oil used before “bud break”) is sprayed before new needles appear on the trees in the spring, and the nontoxic horticultural oils or insecticidal soaps are sprayed a few times during the growing season, adelgids are often stopped from spreading.