HELDMG: 'Heliothis' (Lepidoptera: Noctuidae) Spp. Damage Subroutine for the Cotton Model GOSSYM

摘要

An insect damage model (HELDMG), consisting of a command procedure and five subroutines, was written to simulate the within-plant distribution of Heliothis spp. larvae in cotton. Input data were derived from a Heliothis spp. model or from scouting reports. HELDMG can be used with the cotton model GOSSYM to study the effects of Heliothis damage on cotton growth and yield.