Development Rates for the Seed Maggots Delia platura and D. florilega (Diptera: Anthomyiidae)

Abstract

Duration of immature stages of seedcorn maggots (SCM), Delia platura (Meigen), and bean seed maggots (8SM), D. florilega (Zetterstedt), was determined at eight constant temperatures from 5 to 400C. No SCM or 8SM survived to second instar at either 5 or 40°C. No 8SM survived to the adult stage at 35°C. Duration of immature stages varied from 240 days at l00C to 17 days at 35°C. A computer model developed using the SCM development rate data closely simulated SCM development in the field during the growing season.

Management of Delia (Diptera: Anthomyiidae) through selectively timed planting of Phaseolus vulgaris (Fabaceae) in Atlantic Canada

“…In the laboratory, developmental rates for D. platura and D. florilega were determined by Sanborn et al . (1982) and Throne and Eckenrode (1986). Such studies can produce a range of base development temperatures, e.g.…”

“…Degree-day models for D. platura have been developed in the United States of America (Funderburk et al 1984) and Korea (Lee et al 2000) using field observations. In the laboratory, developmental rates for D. platura and D. florilega were determined by Sanborn et al (1982) and Throne and Eckenrode (1986). Such studies can produce a range of base development temperatures, e.g., 0.6-7.9°C, creating the need to evaluate each model in specific regions.…”

“…A single adult female can oviposit between 50 and 270 eggs (Bennett et al 2011;Soroka and Dosdall 2011). Delia larvae will eclose approximately two days after oviposition (Throne and Eckenrode 1986). The developmental time for larvae is approximately two weeks during which feeding occurs on vegetation.…”

Emergence Patterns of the Seedcorn Maggot, Delia platura (Diptera: Anthomyiidae)

“…, are cosmopolitan pests of many crops (Throne 1980). In New York State, SCM larvae can be found in small numbers on many newly seeded crops throughout the growing season, and the larvae damage germinating seeds and seedlings .…”

Seedcorn maggot in conventional and conservation tillage soybeans and damage effects on soybean growth and yield

“…Table 2. Mean number and relative variation of total seedcom maggot 36 emergence in conventional and reduced-tillage soybean plots near Nashua, Iowa, in 1979, 1980…”