carrot.weevil.model {ZeBook}

Carrot weevil development model

Description

Model description. Simple model of developpement of carrot weevil.

Usage

carrot.weevil.model(tbase = 7, tteggs = 130, ttlarvae = 256,
  ttprepupae = 114, ttpupae = 130, ttadultpreovi = 91, weather,
  sdate = 1, ldate = 360)

Arguments

tbase

: base temperature

tteggs

: duration of eggs stage in degre.day

ttlarvae

: duration of larvae stage in degre.day

ttprepupae

: duration of prepupae stage in degre.day

ttpupae

: duration of pupae stage in degre.day

ttadultpreovi

: duration of adult stage until egg laying in degre.day

weather

: weather data.frame for one single year

sdate

: date to begin simulation (day of year) (default 1)

ldate

: date to end simulation (day of year) (default 360)

Value

data.frame with daily state variable