Effects of Nantucket Pine Tip Moth Insecticide Spray Schedules on Loblolly Pine Seedlings
نویسندگان
چکیده
منابع مشابه
Efficacy tests and determination of optimal spray timing values to control nantucket pine tip moth (Lepidoptera: Tortricidae) infestations.
The Nantucket pine tip moth, Rhyaciona frustrana (Comstock), a common regeneration pest of loblolly pine, Pinus taeda L., has been shown to reduce tree volume yields through larval feeding. Chemical applications can be effective in protecting trees from the growth losses associated with this feeding, and optimum spray timing values are commonly used to reduce the number of necessary application...
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J. Entomol. SC!. 38(4): 621-630 (October 2003) Abstract The widespread application of intensive forest management practices throughout the southeastern U.S. has increased loblolly pine, f inus faeda L., yields and shortened conventional rotation lengths. Fluctuations in Nantucket pine tip moth, Rhyacionia frustrana (Comstock), population density and subsequent damage levels have been linked to ...
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In a three year study, IOOderate and severe root pruning just before planting was compared to no root pruning, on two size classes of seedlings (smaller and larger than average). Seedlings were bar planted in holes the full depth of the planting bar blade. For the smaller seedlings, survival was 1.0 percentage point higher for moderate pruning and 5.6 points lower for severe pruning compared to...
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In tests with Pinus taeda L., most properties of wet. formed hardboard were improved by using fiber refined from wood having short, slender tracheids with thin walls. A theoretical analysIs suggested that the fibers fail in bending while under stress induced by the pressing operation. Such bending failures improve conditions for hydrogen bonding, thus improving board properties. Trachelds havmg...
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To probe variation in Al sensitivity of two co-occurring pine species, seedlings from six full-sib families of loblolly pine (Pinus taeda L.) and slash pine (Pinus elliottii Engelm.) were grown in solution culture containing 4.4 mM (high-Al) or 0.01 mM (low-Al) AlCl(3) at pH 4 for 58 days. On average, both pine species had 41% less total dry weight in the high-Al treatment than in the low-Al tr...
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ژورنال
عنوان ژورنال: Southern Journal of Applied Forestry
سال: 2000
ISSN: 0148-4419,1938-3754
DOI: 10.1093/sjaf/24.2.106