CROP: Onion

The first 6 to 8 weeks are especially vital for developing root growth in onions. Strike soil fumigants create a zone of protection from soil borne disease, buying time for the developing young plants to yield a healthy and vigorous onion root.

Yellow Onion: Fumigation Trial 2017

Yellow Onion Variety-Tamara; Bed size 44 inches from furrow to furrow; 1 application Fontelis 7.5 ounces banded; Center pivot irrigation; Prices 2017 50lb Med $5/Jumbo $7/Colossal $9

2-3″ 3-3.75″ >3.75″ Sample Wt
Treatment Weight (lbs) Weight (lbs) Weight (lbs) Total lbs Total lbs/Ac Tons/Ac
Metam 8.5 89.4 5.7
45 gpa 11.6 89.7 3.4
Average 10.1 89.6 4.6 104.2 104,150 52.1
Strike 80 7.9 81.6 6.6
8 gpa 5.1 81.6 6.6
Average 6.5 89.7 10.9 107.0 107,000 53.5
Strike 100 9.3 94.6 7.3
10 gpa 7.7 87.8 9.7
Average 8.5 91.2 8.5 108.2 108,200 54.1
% of Total
Metam 9.6% 86.0% 4.4%
Strike 80 6.1% 83.8% 10.1%
Strike 100 7.9% 84.3% 7.9%
$ per acre return $ change
Medium Jumbo Colossal Total $/Ac Change $/Ac 120 ac
Metam $1,005 $12,537 $819 $14,361 $0 $0
Strike 80 $650 $12,551 $1,953 $15,154 $793 $95,160
Strike 100 $850 $12,768 $1,530 $15,148 $787 $94,440
Row 11 feet 10 inches
Wt X 1000 = total lbs per ac

Benefits of Soil Fumigation:

  • Protects young root formation
  • Promotes healthy bulb development
  • Better utilization of nutrients
  • Requires less irrigation
  • Longer harvest window
  • Higher marketable yields
Onion Strike Treated vs. Untreated
Strike Treated vs. Untreated Onions

Common Onion Diseases and Pathogens:

  • Phoma (Pink Root)
  • Rhizoctonia
  • Fusarium
  • Pythium
  • Phytophthora
  • Rhizoctonia spp
  • Collototricum spp
Onion Field
Strike Treated vs. Untreated // Onion Field
Strike Treated Onion Field

Onion Fields

Strike Treated

Untreated Onion Field

Onion Fields

Untreated