. Cranberries; : the national cranberry magazine. Cranberries. lOHN Bemier rides the granular chemical spreader he designed 3ver a bog in Rochester, Mass. (CRANBERRIES photo by Kirby GUmore) lave tested several insecticides the last wo years and Furadan continues to be he best. One insecticide called Amaze ;ave nearly as good control in last ear's trials as Furadan. It and one or wo others will be tested further this ear. Q: Do we now have a new pest ailed a "nematode" in cranberries? low is it controlled? A:Nematodes constitute a class of vorms. Most are very small and many re paras
. Cranberries; : the national cranberry magazine. Cranberries. lOHN Bemier rides the granular chemical spreader he designed 3ver a bog in Rochester, Mass. (CRANBERRIES photo by Kirby GUmore) lave tested several insecticides the last wo years and Furadan continues to be he best. One insecticide called Amaze ;ave nearly as good control in last ear's trials as Furadan. It and one or wo others will be tested further this ear. Q: Do we now have a new pest ailed a "nematode" in cranberries? low is it controlled? A:Nematodes constitute a class of vorms. Most are very small and many re parasitic on plants but there are ew, if any, published reports of lematodes damaging cranberries. In our 1983 black vine weevil plots t the cranberry station, we observed ranberry root and vine growth that ould not be accounted for just by eevil larva control. We sent soil imples to Dr. William Haglund at le Northwestern Washington Research nd Extension Unit at Mount Vernon )r examination. He discovered high opulations of two species of ematodes, Trichodorus and emicyliophora, in the samples. Both m be very damaging to plants. We do not know how widespread lis problem is. In May we collected lil samples around weak areas in about 20 bogs in the Long Beach and Grayland areas. They were sent to Dr. Haglund who is examining them for nematodes. This should tell us whether the problem is just a local one at the research station or whether it occurs in many places. We also should leain whether the flood at harvest affects the nematodes. Preliminary data indicate that these nematodes do occur in both the Grayland and Long Beach areas. However, not all weak areas of bogs were associated with these nematodes. Black vine weevil and other factors also cause weak plants. More research is needed to determine how important these pests are and how widspread they are. It would be advisable to be careful about transferring cranberry plants, soil, etc., from one bog to another as the nematodes could
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