Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States has not required regular insecticide usage. The soybean aphid, Aphis glycines (Hemiptera: Aphididae), is the most important soybean insect pest in Iowa and is capable of reducing yield by 40 percent. Nymphs and adults feed on sap within the phloem and can vector several plant viruses. In Iowa, soybean aphids have been a persistent pest that can colonize fields from June through September. Their summer population dynamics are dependent on weather and other environmental conditions
Soybean (Glycine max), grown in Iowa and most of the north central region of the United States, has ...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States d...
Reports from extension field crops specialists across Iowa on July 24 indicate that soybean aphids h...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States h...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States h...
Soybean (Glycine max), grown in Iowa and most of the north central region of the United States, has ...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States h...
SOYBEAN, Glycine max (L.), grown in Iowa and most of the north central region of the United States, ...
In North America, the soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) is a pest of so...
Since the onset of soybean aphid in northeast Iowa in 2001, Iowa State University Extension has cond...
SOYBEAN, Glycine max (L.), grown in Iowa and most of the north central region of the United States, ...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States h...
Soybean, Glycine max (L.), grown in Iowa and most of the north-central region of the United States h...
The first significant occurrence of Soybean Aphid activity in northeast Iowa was in 2001. Significan...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States, ...
Soybean (Glycine max), grown in Iowa and most of the north central region of the United States, has ...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States d...
Reports from extension field crops specialists across Iowa on July 24 indicate that soybean aphids h...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States h...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States h...
Soybean (Glycine max), grown in Iowa and most of the north central region of the United States, has ...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States h...
SOYBEAN, Glycine max (L.), grown in Iowa and most of the north central region of the United States, ...
In North America, the soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) is a pest of so...
Since the onset of soybean aphid in northeast Iowa in 2001, Iowa State University Extension has cond...
SOYBEAN, Glycine max (L.), grown in Iowa and most of the north central region of the United States, ...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States h...
Soybean, Glycine max (L.), grown in Iowa and most of the north-central region of the United States h...
The first significant occurrence of Soybean Aphid activity in northeast Iowa was in 2001. Significan...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States, ...
Soybean (Glycine max), grown in Iowa and most of the north central region of the United States, has ...
Soybean, Glycine max (L.), grown in Iowa and most of the north central region of the United States d...
Reports from extension field crops specialists across Iowa on July 24 indicate that soybean aphids h...