Official Pest Report

Official Pest Reports are provided by National Plant Protection Organizations within the NAPPO region. These Pest Reports are intended to comply with the International Plant Protection Convention's Standard on Pest Reporting, endorsed by the Interim Commission on Phytosanitary Measures in March 2002.

Helicoverpa armigera (Old World Bollworm) - Detection in Florida

Country: United States

Title: Helicoverpa armigera (Old World Bollworm) - Detection in Florida

Eileen Smith, APHIS National Emergency Response Coordinator, at 301-851-2155.


In late June and early July 2015, APHIS confirmed the detection of three adult male Old World bollworms (OWB): two were from the same trap at a tomato farm and one was from a separate trap on a vacant lot near a park in Bradenton, Manatee County, Florida. These are the first detections of OWB in the continental United States.

APHIS and the Florida Department of Agriculture and Consumer Services (FDACS) are surveying a nine square-mile area surrounding the detection sites to determine if this is an isolated incident. In addition, APHIS and FDACS are conducting Cooperative Agricultural Pest Survey (CAPS)-related surveys for OWB in neighboring counties. Through CAPS, APHIS and as many as 27 state partners, including Florida, have surveyed for old world bollworm for more than ten years with negative results.

APHIS and FDACS are also conducting trace backs, trace forwards, and other outreach activities. In addition, APHIS and FDACS will work with trade representatives and state plant regulatory officials as these surveys and related activities continue.

OWB is found in many countries in Africa, Europe, Asia, and the islands of the Western Pacific Region and has recently become established in some areas of South America. It is considered a severe economic pest in most places where it occurs. OWB feeds on many types of plants and can affect 180 species of wild and cultivated plants in more than 45 families. Major hosts include: artichokes, beans and forage legumes, bell peppers, cacao, chrysanthemums, cotton, maize, wheat, and other small grains, okra, peas, potatoes, rice, sorghum, and sugarcane, sunflowers, tobacco, and tomatoes.

OWB is related to the corn earworm, Helicoverpa zea, which is widespread in the United States. The adult moths of these two pests can be distinguished using morphological characters; however, the larvae of corn earworm and OWB cannot be distinguished without DNA analysis.

Further information may also be found at

Under IPPC Standards, Helicoverpa armigera is considered to be a pest that is transient: actionable, under surveillance in the United States


Posted Date: Aug. 3, 2015, 9 a.m.