Software to calculate probit analyses according to Finney (1971), Which is used to illustrate the relation between stimulus and response in toxicological and biological studies.
Illustrate dose-response regression line

  • Very easy to input your data. Very easy to calculate it.

  • Save your data in a file and reopen, reedit and recalculate it any time later.

  • Calculate any value of LD, LC, LT... with upper and lower limits.

  • Show dose-response regression line and the actually observed data points.

  • Show Chi-square of goodness of fit and its probability.

  • Calculate Correlation coefficient (r)

  • Give tables and graphics printout.

  • Make relative studies among several treatments and calculate Index, Resistance ratio and significant intervals.

  • Through "LdP Line" you have the ability to make control correction according to Abbott's, Henderson-Tilton's, Sun-Shepard's and Schneider-Orelli's formulas.

  • Examples of publications citing LdP Line

Akin-Oriola, G. A. and L. A. Lawton. 2006. The Detection and Quantification of Cyanobacterial Toxins in Water Using the Brine Shrimp (Artemia salina) Assay. West Africa Journal of Applied Ecology 9.


Alberto Urbaneja 1 2 *, Sara Pascual-Ruiz 1 2 3, Tatiana Pina 1 2, Raquel Abad-Moyano 1 2, Pilar Vanaclocha 1 2, Helga Montón 1 2, Oscar Dembilio 1 2, Pedro Castañera 1 4, Josep A. Jacas 1 3 2008 Efficacy of five selected acaricides against Tetranychus urticae (Acari: Tetranychidae) and their side effects on relevant natural enemies occurring in citrus orchards Pest Management Science Volume 64 Issue 8, Pages 834 - 842

Aucejo, S.; M. Foó; M. Ramis; P. Troncho; A. Gomez-Cadenas; J. A. Jacas. 2003. Evaluación de la eficacia de algunos acaricidas contra la araña roja, Tetranychus urticae Koch (Acari: Tetranychidae), en clementino. Bol. San. Veg. Plagas, 29 : 453-459.


Dietrich, G.; Marc C. Dolan1; Javier Peralta-Cruz; Jason Schmidt1; Joseph Piesman; Rebecca J. Eisen and Joseph J. Karchesy. 2006. Repellent Activity of Fractioned Compounds from Chamaecyparis nootkatensis Essential Oil Against Nymphal Ixodes scapularis (Acari: Ixodidae). Journal of Medical Entomology 43(5) :957-961.


Dolan, M. C.; Dietrich, G.; Panella N. A.; Montenieri, J. A. and Karchesy, J. J. 2007. Biocidal Activity of Three Wood Essential Oils Against Ixodes scapularis (Acari: Ixodidae), Xenopsylla cheopis (Siphonaptera: Pulicidae), and Aedes aegypti (Diptera: Culicidae). J. Econ. Entomol. 100(2): 622-625.


Follett, P. A. and L. G. Neven. 2006. Current trends in quarantine. Annu. Rev. Entomol. 51:359-85.


Kamau, L; D. Agai1; D. Matoke, L. Wachira1; G. Gikandi and J. M. Vulule. 2007. Status of insecticide susceptibility in Anopheles gambiae sensu lato and Anopheles funestus mosquitoes from Western Kenya. Journal of Insect Science. Vol. 8.

Kamau, L. and J. M. Vulule. 2006. Status of insecticide usceptibility in Anopheles arabiensis from Mwea rice irrigation scheme, Central Kenya. Malaria Journal. Vol. 5.


Lee, Song-Tay; R. Srinivasan; Yan-Jheng Wu and N. S. Talekar. 2007. Occurrence and characterization of a nucleopolyhedrovirus from Maruca vitrata (Lepidoptera, Pyralidae) isolated in Taiwan. BioControl, 52 :801-819.


Lezama-Dávila, C. M.; A. P. Isaac-Márquez; P. Zamora-Crescencio; M. R. Úc-Encalada; S. Y. Justiniano-Apolinar; L. Angel-Robles; A. Satoskar; L. Hernández-Rivero. 2007. Leishmanicidal activity of Pentalinon andrieuxii. Fitoterapia 78 : 255–257.

Srinivasan, R. and Hsu Yun-Che. 2008. Susceptibility of major lepidopterans to δ-endotoxins and a formulation of Bacillus thuringiensis (B.t.) on vegetable brassicas in Taiwan. Biocontrol Science and Technology, 18(9) : 935 - 939.


Urbaneja, A.; P. Chueca; H. Montón; Sara Pascual-Ruiz; Oscar Dembilio; Pilar Vanaclocha; Raquel Abad-Moyano; Tatiana Pina and Pedro Castañera. 2009. Chemical Alternatives to Malathion for Controlling Ceratitis capitata (Diptera: Tephritidae), and Their Side Effects on Natural Enemies in Spanish Citrus Orchards. Journal of Economic Entomology 102(1):144-151.