Search Results - "Nyrop, J P"

Sampling Insect Populations for the Purpose of IPM Decision Making by Binns, M R, Nyrop, J P

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Control Decision Rule for European Chafer (Coleoptera: Scarabaeidae) Larvae in Field Corn by Renkema, J. M., Nyrop, J. P., Difonzo, C., Sears, M. K., Schaafsma, A. W.

“…After greenhouse and outdoor microplot experiments, a critical density of two third instars per microplot for third instars of European chafer, Rhizotrogus…”
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Moisture, a vital but neglected factor in the seasonal ecology of insects: hypotheses and tests of mechanisms by Tauber, M.J. (Cornell University, Ithaca, NY.), Tauber, C.A, Nyrop, J.P, Villani, M.G

“…Of the major physical factors that influence insect seasonal ecology, moisture is least understood and least appreciated. It is our premise that experimental…”
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Oviposition model for timing insecticide sprays against plum curculio (Coleoptera: Curculionidae) in New York State by Reissig, W.H. (Cornell University, Geneva, NY.), Nyrop, J.P, Straub, R

“…Plum curculio, Conotrachelus nenuphar (Herbst), feeding and oviposition on apples during spring was measured for 3 yr in a heavily infested orchard in New York…”
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Entomopathogenic nematode (Rhabditida : Heterorhabditidae and Steinernematidae) response to soil texture and bulk density by PORTILLO-AGUILAR, C, VILLANI, M. G, TAUBER, M. J, TAUBER, C. A, NYROP, J. P

“…The survival of Heterorhabditis bacteriophora Oswego Poinar, Steinernema carpocapsae NY001 Weiser, and S. glaseri NC1 Steiner varied in relation to the bulk…”
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Influence of cold storage on pupal development and mortality during storage and on post-storage performance of Encarsia formosa and Eretmocerus eremicus (Hymenoptera: Aphelinidae) by Luczynski, A., Nyrop, J.P., Shi, A.

“…Pupae of Encarsia formosa were cold stored to determine the influence of low temperature and the duration of exposure on their development and mortality during…”
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Pattern of female reproductive age classes in mass-reared populations of Phytoseiulus persimilis (Acari: Phytoseiidae) and its influence on population characteristics and quality of predators following cold storage by Luczynski, A., Nyrop, J.P., Shi, A.

“…We exposed mass-produced Phytoseiulus persimilis to 5 °C or 10 °C for 0, 6, 12 or 18 days to determine the influence of cold on the fecundity and longevity of…”
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Aerial dispersal of European red mites (Acari: Tetranychidae) in commercial apple orchards by Lawson, D.S. (Cornell Univ., Geneva, NY (USA). Dept. of Entomology), Nyrop, J.P, Dennehy, T.J

“…Aerial dispersal of European red mite, Panonychus ulmi (Koch), in commercial apple orchards was estimated by trapping windborne mites. Studies were conducted…”
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Assays with commercially produced Trichogramma (Hymenoptera: Trichogrammatidae) to determine suitability for obliquebanded leafroller (Lepidoptera: Tortricidae) control by Lawson, D.S, Nyrop, J.P, Reissig, W.H

“…Laboratory assays were used to compare the ability of commercially produced Trichogramma spp. to parasitize eggs of the obliquebanded leafroller, Choristoneura…”
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Sequential sampling plan for scheduling control of lepidopteran pests of fresh market sweet corn by HOFFMANN, M. P, NYROP, J. P, KIRKWYLAND, J. J, RIGGS, D. M, GILREIN, D. O, MOYER, D. D

“…Counts of corn plants infested by European corn borer, Ostrinia nubilalis (Huebner), fall armyworm, Spodoptera frugiperda (J. E. Smith), and corn earworm,…”
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Interference with the mate-finding communication system of obliquebanded leafroller (Lepidoptera: Tortricidae) using synthetic sex pheromones by Lawson, D.S. (Cornell University, Geneva, NY.), Reissig, W.H, Agnello, A.M, Nyrop, J.P, Roelofs, W.L

“…Effect of atmospheric permeation with synthetic sex pheromone on the behavior and control of obliquebanded leafroller, Choristoneura rosaceana (Harris), was…”
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Sampling and monitoring in crop protection: the theoretical basis for developing practical decision guides by Binns, M. R, Nyrop, J. P, Werf, W. van der

“…This book covers the statistical concepts of sampling in agricultural pest management. These can be summarised as how to obtain sample data from the field and…”
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Integrated apple pest management in New York State using predatory mites and selective pesticides by Agnello, Arthur M., Reissig, W.Harvey, Kovach, Joe, Nyrop, Jan P.

“…A 3-year demonstration study was conducted in four western New York apple orchards to evaluate current approaches of sustainable pest management in…”
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Sampling for IPM decision making: where should we invest time and resources? by Nyrop, J.P, Binns, M.R, Werf, W. van der

“…Guides for making crop protection decisions based on assessments of pest abundance or incidence are cornerstones of many integrated pest management systems…”
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Sampling and monitoring in crop protection: the theoretical basis for developing practical decision guides / M.R. Binns, J.P. Nyrop, and W. van der Werf by Binns, M. R, Nyrop, J. P, Werf, W. van der

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Foraging Time and Spatial Patterns of Predation in Experimental Populations. A Comparative Study of Three Mite Predator-Prey Systems (Acari: Phytoseiidae, Tetranychidae) by Zhang, Zhi-Qiang, John P. Sanderson, Jan P. Nyrop

“…Responses of the predaceous mites Phytoseiulus persimilis, Typhlodromus (=Metaseiulus) occidentalis, and Amblyseius andersoni to spatial variation in egg…”
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Influence of European Red Mite on Leaf and Whole-canopy Carbon Dioxide Exchange, Yield, Fruit Size, Quality, and Return Cropping in `Starkrimson Delicious' Apple Trees by Lakso, A.N, Mattii, G.B, Nyrop, J.P, Denning, S.S

“…The hypothesis was tested that effects of late-season European Red Mite (ERM) [ Panonychus ulmi (Koch)] injury on apple ( Malus domestica Borkh.) fruit…”
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Interpopulation variation in Chrysoperla carnea reproduction: implications for mass-rearing and storage by Chang, Yin-Fu, Tauber, Maurice J., Tauber, Catherine A., Nyrop, Jan P.

“…To determine whether diverse populations and biotypes of Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) can be mass‐produced and stored under uniform…”
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Carbon balance as a physiological basis for the interactions of European red mite and crop load on 'Starkrimson Delicious' apple trees by Francesconi, A.H.D, Lakso, A.N, Nyrop, J.P, Barnard, J, Denning, S.S

“…The hypothesis that carbon balance is the basis for differences in responses by lightly and normally cropped apple trees to European red mite (ERM) [Panonychus…”
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Interactions of European red mite and crop load on maturity and quality, mineral concentrations, and economic value of 'Starkrimson Delicious' apples by Francesconi, A.H.D, Watkins, C.B, Lakso, A.N, Nyrop, J.P, Barnard, J, Denning, S.S

“…Fruit maturity, quality, calcium concentration and economic value of 'Starkrimson Delicious' (Malus domestica Borkh.) apples, under a range of crop levels and…”
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