Likely evidence of weevil feeding, this sample demonstrates the pest's preference for tissue galled by Litylenchus nematodes.
and trifloxystrobin, applied at a rate of 4-8 fl. oz. per 100 gallons, with a yearly limit of 27.3 fl. oz. per acre. Be cautioned that some arborists have been confused by the differing re-entry require- ments for agricultural versus horticultural uses. Bartlett re- searchers, who discovered this treatment in 2022 and applied for the special use labels, are continuing to fine-tune dosage and application timing. Moreover, Cartier noted some arborists continue to apply phos- phites to the soil or lower trunk,
as these compounds can man- age Phytophthora and improve tree vigor, although results with phosphites alone can vary sig- nificantly. Borden elaborated on Bartlett Tree Expert Company’s protocol, noting they use Broadform on trees smaller than 8 to 10 inches in diameter that can be sprayed from the ground with full cover- age, and Arbotect 20-S systemic treatments for larger trees. He also shared that, based on their recently published research done in collaboration with Rainbow
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