For one, tobacco budworms
have developed resistance to many pesticides.
Relation of tobacco budworm
catches in pheromone-baited traps to field populations.
Effects of cotton plant allelochemicals and nutrients on behaviour and development of tobacco budworm
Because toxins are present in cotton for the entire life of the plant and in all parts of the plant, scientists are concerned that tobacco budworm
and bollworm may rapidly develop resistance to Bt cotton.
Bollworm and tobacco budworm
as cotton pest in Louisiana and Arkansas.
Cultivars containing the Monsanto Bt gene are highly resistant to tobacco budworm
[Heliothis virescens (Fabricius)] and pink bollworm [Pectinophora gossypiella (Saunders)] larvae, but are less resistant to the cotton bollworm [Helicoverpa zea (Boddie)] and the American bollworm [H.
When tobacco budworm
(Heliothis virescens) and corn earworm (Heliocoverpa zea) caterpillars chew on certain plants, chemical cues in their saliva cause the plants to send out defensive signals.
De Moraes tested the tobacco plant's response to two closely related insects: the tobacco budworm
(Heliothis virescens), a common pest of the plant, and the corn earworm, also called the cotton bollworm (Helicoverpa zea), which normally doesn't touch the stuff.
1976), and tobacco budworm
caterpillars fed any of several allelochemicals from cotton (Jenkins et al.
Behavior and circadian rhythm of emergence, copulation and oviposition in the oriental tobacco budworm
, Heliothis assulta Guenee.
In a Mississippi strains test conducted in 2000, lint yields of MISCOT 8806, Stoneville 474, and Suregrow 501 were compared in plots artificially infested with tobacco budworm
[Heliothis virescens (Fabricius)] and in plots protected from tobacco budworm
and other lepidopteran pests (Jenkins et al., 1983).