Huanglongbing (HLB) is a disease associated with the bacteria "Candidatus Liberibacter spp." and has been devastating citrus orchards around the world. Its management involves control of the insect vector, the Asian citrus psyllid Diaphorina citri Kuwayama. However, the indiscriminate use of chemicals has caused pest outbreaks and eliminated the natural enemies of the vector, such as the parasi...

Soil insecticides were evaluated in laboratory and field studies against larvae of an insecticide resistant population (Phelps County, NE) of western corn rootworm, Diabrotica virgifera virgifera LeConte. Insecticide toxicity was evaluated by topical application of technical insecticides to 3rd instars from Saunders County, NE (susceptible) and Phelps County populations. Resistance ratios (LD50...

1. This document was originally published as Circular 1295 by the Office of Agricultural Entomology, University of Illinois at Urbana-Champaign. This document is ENY-275 (IN081), one of a series of the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First published: June 1995. Revised: June 2005. Pl...

G. Adiwidjaja Mineralogisch-Petrographisches Institut der Universität Hamburg, Grindelallee 48, D-20146 Hamburg Z. Naturforsch. 50b, 953-958 (1995); received November 21, 1994 Chlorinated Insecticides, Electrochemical Reduction, Aldrin, Mirex, Dechlorination Partial but regioand stereoselective dechlorination takes place if polychlorinated oligocyclic insecticides (Diels-Alder adducts and dimer...

The intensive use of insecticides, combined with other factors such as habitat loss, might explain worldwide decrease insect populations documented in the past twenty years. However, due to involvement pest species crop destruction and vector-borne diseases, insecticides will probably continue be required still for decades. most commercially successful are neurotoxicants acting on ion channels ...

The toxic effects of herbicides (Machete, Saturn) and pesticides (Diazinon and Malathion) on green algae, Scenedesmus obtusiusculus, and cyanobacteria, Anabaena flos aquae, were studied. The results indicated that Machete and Saturn, in comparison to Diazinon and Malathion, were more toxic. On the other hand it was revealed that green algae was more sensitive to the pesticides than the cyanobac...

Background: Leishmaniosis is a prevalent tropical parasitic disease, which is caused by Leishmania protozoa. The infection can be limited in immune-competent individuals; however, in immune-compromised individuals it could proceed to chronic and ulcerative disease. The reservoirs are carnivores, and rodents and its vectors are Phlebotomus and Lutzumia. Methods: The prevalence of different spice...

The common pistachio psyllid, Agonoscena pistaciae, is the key pest of pistachio trees in Iran. Both nymphs and adults suck sap from leaves and reduce plant vigor and yield, increase the number of blank, half growth kernel and unsplit nuts and also cause defoliation and buds drop. Detrimental effects of chemical synthetic insecticides and the resistance of common psyllid pistachio to them and t...