The objective of this study was to evaluate insecticide toxicity on Bemisia tabaci, Tetranychus evansi, Orius insidiosus, Cycloneda sanguinea and Chauliognathus flavipes in tomato plants. The following toxicity treatments were applied: T1: control, T2: chlorpyrifos (Pitcher) 450 EC (1.25 L.ha), T3: chlorpyrifos 450 EC (Pitcher) (0.62 L.ha), T4: thiamethoxam 100 WG (1.00 L.ha), T5: thiamethoxam ...

This study describes experiments carried out to examine effects of the antiparasitic drug teflubenzuron, used in delousing farmed salmon, on a non-target species, the European lobster (Homarus gammarus). Juvenile lobsters were fed two doses of teflubenzuron, 10 and 20mg/kg successively for 7 days corresponding to a standard medication of the fish (10mg/kg day) and twice the standard dose (20mg/...

Chitin synthesis inhibitors are successfully used in pest control and an excellent option for integrated management programs due to their low non-target effects. However, field-evolved resistance of lepidopteran pests chitin the selection laboratory-resistant strains these products has been already reported. Therefore, support efficient it is necessary expand knowledge on mechanisms potential m...

Teflubenzuron baits were active against laboratory colonies of the red imported fire ant, Solenopsis invicta Buren. Worker brood production ceased soon after treatment and by four weeks posttreatment, most colonies were devoid of brood. Worker ants did not exhibit any direct effects from treatment with teflubenzuron. As is typical with most insect growth regulators, colony mortality was slow an...

Selection of two strains (TL and BK) of diamondback moth, Plutella xylostella (L.) with chlorfluazuron has produced high levels of resistance in comparatively short time (9 and 10 generations). The resistance ratio values reached 276and 216-fold, for TL and BK strains, respectively. The BK strain developed about 80-fold resistance level after only three selection generations with chlorfluazuron...

abstract confused flour beetle, tribolium confusum duval (col.: tenebrionidae) is one of the most important stored product pests of flour in iran. in this research the effects of insect growth regulators (igrs): teflubenzuron, hexaflumuron and pyriproxyfen were studied on larval and imago nutritional indices of confused flour beetle. the results showed that they were more effective on relative ...

Fall armyworm Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) is an important pest of maize (Zea mays L.) crops in Brazil. The effects of beta-cypermethrin, chlorfenapyr, chlorpyrifos, spinosad, etofenprox, triflumuron, alpha-cypermethrin/teflubenzuron, and lambda-cyhalothrin/thiamethoxam on Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) immature stages we...

Corn (Zea mays L.) is cultivated in large areas and considered one of the world’s major cereal crops. There are several arthropod pests that can reduce its production such as the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lep.: Noctuidae), which is considered to be the main pest for corn. Fall armyworm is primarily controlled by insecticides. The use of biological control agents to mana...

Chitin and β-glucan are major cell wall components of Aspergillus spp. We investigated the antifungal activity of chitin synthesis inhibitors nikkomycin Z, polyoxin D, flufenoxuron, lufenuron, and teflubenzuron, alone and combined with the β-glucan synthesis inhibitor caspofungin. Only nikkomycin Z and caspofungin were found to act synergistically. The nikkomycin Z-induced chitin decrease corre...