Don’t be beaten by bollworm
May 18, 2020
2 minutes
BILL KERR
The African bollworm (Helicoverpa armigera) is normally a sporadic pest; it tends to arrive on lettuce plants in bursts, rather than gradually increasing in number.
Every lettuce farmer is bound to encounter this pest sooner or later. This is due to its extremely wide host range, which includes most
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