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A mathematical model for the estimation of the economic tolerance limits of fruit moth infestations

, : A mathematical model for the estimation of the economic tolerance limits of fruit moth infestations. Workshop sessions: ; 401

The authors described 2 variants of a mathematical model for estimating the economic limits of Lepidoptera on fruit, with special reference to Cydia pomonella (L.) (Laspeyresia pomonella), C. Funebrana (Treitschke) (L. funebrana) and C. molesta (Busck) (Grapholita molesta). The model is based on the values of the attack frequencies assessed empirically at production and research level, and on the value of the risk assumed by evaluating these limits.


Other references

Tan, C.S.; Ngo, W.Kiong.; Lim, L.W., 2015: Re: Oishi et al.: LAPTOP study: a 24-month trial of verteporfin versus ranibizumab for polypoidal choroidal vasculopathy (Ophthalmology 2014;121:1151-2). Ophthalmology 122(1): E5-E6

Jerant, A.; Moore, M.; Lorig, K.; Franks, P., 2008: Perceived control moderated the self-efficacy-enhancing effects of a chronic illness self-management intervention. Identifying moderators of the effects of self-efficacy-enhancing interventions could improve their efficiency. We examined the effects of a home-based variant of the Chronic Disease Self-Management Program on self-efficacy, and explored the modera..., R.S.; Morris, R.W., 1997: An undergraduate laboratory project exercise integrating Actinomycetes isolation from soil with the Kirby Bauer antibiotic sensitivity assay. Abstracts of the General Meeting of the American Society for Microbiology 97(0): 593

Tibin, I.M.; Ahmed, D.E., 1997: Feeding sorghum grains substituted with molasses to desert lambs: effect on feedlot performance, carcass and noncarcass characteristics. In a 12-week study, 21 Sudan Desert lambs, 22 kg, 8 months old, were randomly divided into 3 groups and fed on rations in which sorghum grain was replaced by molasses (0, 20 or 40%). Feedlot performance of lambs was affected (P<0.05) by treatme...

Machado, M.; Machado, N., 1981: Dry matter production of commercial corn hybrids, at three planting date on the First Plateau of Parana Brazil, plant trials.1. Revista do Sector de Ciencias Agrarias(1): 72-76

D.D.ego, N.; Pérez-Alfocea, F.; Cantero, E.; Lacuesta, M.; Moncaleán, P., 2012: Physiological response to drought in radiata pine: phytohormone implication at leaf level. Pinus radiata D. Don is one of the most abundant species in the north of Spain. Knowledge of drought response mechanisms is essential to guarantee plantation survival under reduced water supply as predicted in the future. Tolerance mechanisms are...

Ma, Y.; Lin, S-Quan.; Gao, Y.; Li, M.; Luo, W-Xin.; Zhang, J.; Xia, N-Shao., 2003: Expression of ORF2 partial gene of hepatitis E virus in tomatoes and immunoactivity of expression products. To transfer hepatitis E virus (HEV) ORF2 partial gene to tomato plants, to investigate its expression in transformants and the immunoactivity of expression products, and to explore the feasibility of developing a new type of plant-derived HEV oral...

Jaeger, V.; Esplin, B.; Capek, R., 1979: The anticonvulsant effects of propranolol and beta-adrenergic blockade. The anticonvulsant activity of racemic and (+)-propranolol was studied in rats. Neither drug changed the current to produce a minimal seizure in 50% of animals. Both drugs were effective in the maximal electroshock seizure test, the (+) isomer bei...

Gromadzka, J., 1968: Respiratory metabolism of the Colorado beetle (Leptinotarsa decemlineata Say). The following is virtually the author's summary. The respiratory metabolism of the developmental stages of Leptinotarsa decemlineata (Say) was investigated in Poland at varying temperatures and at 20 degrees C. The highest rate of oxygen cons...

Tzortzakakis, E.A.; Channer, A.G. de R.; Gowen, S.R.; Goumas, D.E., 1995: Preliminary studies on the effect of the host plant on the susceptibility of Meloidogyne nematodes to spore attachment by the obligate parasite Pasteuria penetrans. Variability in the number of spores of the bacterial parasite Pasteuria penetrans which attached to J2 of a mixed Meloidogyne javanica/M. incognita population after development on different host plants was recorded. These differences may result fr...