Corn grown in Mexico is often affected by the corn earworm
, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), which damages ear, reduces yield, and increases cob rot (Ortega 1987) by providing an inoculation court for establishment of fungal diseases (Ortega 1987; Wu 2006; Aguirre et al.
Many of the innovations for successful control have resulted from the work of Agricultural Research Service scientists, such as the discovery in 1936 that selenium is absorbed by plant roots and carried to foliage where it kills aphids, which became the first systemic insecticide; finding genetic resistance to corn earworm
in a line of flour corn in 1941; and developing the sterile male insect release technique that led to the eradication of the screwworm from the United States in 1966, a method that is being used today to keep this and other pests like the Mediterranean fruit fly out of the country.
saliva induces herbivore defense gene expression in corn.
Genuity VT Triple PRO RIB Complete, a blend of 90 percent insect-protected and 10 percent refuge seed, contains herbicide tolerance, a single mode of action for corn rootworm control and dual modes of action for above-ground insect protection - including corn earworm
, fall armyworm and European and Southwestern corn borer.
Scientists have designed agents that interfere with the protective dormancy period of the corn earworm
, a species that infests more than 100 types of plants and costs U.
According to Monsanto, the technology's 5% blended refuge, the lowest in the corn growing area, means farmers can protect more of their acres with two modes of action for controlling corn rootworm and corn earworm
1962), a main predator of corn earworm
moths (Lee and McCracken, 2002, 2005).
There certainly isn't anything cute or cuddly about a housefly, a corn earworm
, a cockroach, or a praying mantis.
SMOTHER CORN EARWORM
To prevent damage, use a medicine dropper to slip two drops of mineral oil inside the tip of each ear, three to seven days after silks appear.
Incidentally, geranium budworm is quite similar to corn earworm
, a pest that has been known to gobble up ears of corn in certain Valley gardens.
(Heliothis zea (Boddie)) normally a late season pest, did not develop during 2004.
Evidences for a far infrared (FIR) electromagnetic theory of communication and sensing in moths and its relationship to the limiting biosphere of the corn earworm
, Heliothis zea.