Populations reaching or exceeding 1 per leaf merit strong consideration for treatment with Apollo, Savey or Agrimek in combination with oil. Lesser populations may or may not merit such treatment. According to observers of maple trees, pear thrips are not abundant as yet this season. This would perhaps suggest that we will escape their potentially harmful effects this year. Psylla flight and egglaying activity continues this week.
Most orchards have oiled once so far, so egg deposition is light to moderate.