codling {DAAG}R Documentation

Dose-mortality data, for fumigation of codling moth with methyl bromide

Description

Data are from trials that studied the mortality response of codling moth to fumigation with methyl bromide.

Usage

data(codling)

Format

A data frame with 99 observations on the following 10 variables.

dose
Injected dose of methyl bromide, in gm per cubic meter
tot
Number of insects in chamber
dead
Number of insects dying
pobs
Proportion dying
cm
Control mortality, i.e., at dose 0
ct
Concentration-time sum
Cultivar
a factor with levels BRAEBURN FUJI GRANNY Gala ROYAL Red Delicious Splendour
gp
a factor which has a different level for each different combination of Cultivar, year and rep (replicate).
year
a factor with levels 1988 1989
numcm
a numeric vector: total number of control insects

Details

The research that generated these data was in part funded by New Zealand pipfruit growers. The published analysis was funded by New Zealand pipfruit growers. See also sorption.

Source

Maindonald, J.H.; Waddell, B.C.; Petry, R.J. 2001. Apple cultivar effects on codling moth (Lepidoptera: Tortricidae) egg mortality following fumigation with methyl bromide. Postharvest Biology and Technology 22: 99-110.


[Package DAAG version 0.76 Index]