According to Zhang's tests, methyl benzoate is 5 to 20 times more toxic to eggs of BMSB, diamondback moth, and tobacco hornworm
than a conventional pyrethroid insecticide, a sulfur and pyrethrin mixture, and some organic products currently on the market.
2007), Grandevo was found to be lethal to the Southern green stink bug, sweet potato whitefly, diamond-back moth larvae, small hive beetle larvae, Western and Southern corn rootworm, and Colorado potato beetle larvae, but not to the mosquito Culex pipens, tobacco hornworm
larvae, gypsy moth larvae, or Colorado potato beetle adults.
Caption: Tobacco hornworm
caterpillars use some of the nicotine in their food to produce a smoker's breath strong enough to drive away predatory wolf spiders.
moths, known to scientists as Manduca sexta, are hawkrnoths native to the Southwest.
In the tobacco hornworm
, Manduca sexta, midgut E-20-M undergoes a 50-fold increase in activity temporally coincident with larval-pupal reprogramming in the last larval stadium.
Control of moulting and metamorphosis in the tobacco hornworm
, Manduca sexta (L.
Spruce budworm diet consumption was significantly greater than bean and tobacco hornworm
diet (P < 0.
Howe and others (1996) found that a tomato mutant that was deficient in the capacity to induce defense genes, via the octadecanoid pathway, was much more susceptible to damage by the tobacco hornworm
Observations on feeding and movement of tobacco hornworm
1%) and parasitism by Cotesia congregata on the growth and food consumption and utilization of the tobacco hornworm
, Manduca sexta.
Tests show that the toxin kills tobacco hornworm
and waxworm larvae, but it isn't Pf-5's only defense against insects.
Researchers have found a compound in potatoes and tomatoes that turns tobacco hornworm
caterpillars into addicts.
Very small amounts--nanogram quantities--can be fatal to a variety of pesky insects, says Ensign, including the tobacco hornworm
, (belonging to the order Lepidoptera) and the mealworm (Coleoptera).
All but two of these pests (the tobacco hornworm
and the yellow mealworm) died after meeting up with the pirate bug.
Tomatine and rutin, for example, each harmed the tobacco hornworm
more in the spring temperatures than in the summer conditions.