Curculionidae

Pine wilt is a disease of pine trees caused by Pinewood nematodes, a microscopic roundworm. Though all species of pines found east of the Rocky Mountains in the United States are hosts, Pinewood nematode is most commonly found on Scotch pine. Native pine tree species are resistant, with the nematodes being more of a problem on introduced species of pines. Most often the first sign of pine wilt is the sudden decline and death of an entire pine tree, usually from the warmest part of the summer through

Laurel Wilt Disease is a scourge here in Florida. The disease affects laurel trees all over the Southeast, with the most notable victim being avocado trees. The beetles also effect sassafras trees, pond spice trees, and swamp bays. The main cause of this disease is a fungus known as Raffaelea Lauricola that is transmitted through a beetle called the red bay ambrosia beetle (Persea Borbonia). Neither of these species are native to the area. It was brought over to the states through wooden shipping

In this lab, an experiment was done in order to test how the abiotic factor of temperature affects a Tenebrio molitor’s activity level. Both experiments conducted consisted of two separate treatment trials; one in a warm environment (25 degrees Celsius) and one in a relatively cold environment (14 degrees Celsius). Results obtained from these experiments both showed a higher level of T. molitor activity in the warm environment as opposed to the cold environment where less activity occurred. In this

Several researchers like (Burakova and Mazokhin-Porshnyakov, 1982; Mishra and Meyer-Rochow, 2008a) confirmed that the vesicles originate from inflation of the interretinular strands and are simply extensions of the cone cells. Shaw (1978) considered the presence of vesicles around the rhabdomere to be a typical feature of dark/light adaption. The location of the interretinular spaces suggests two possible functions. The first is to make physical contact with the rhabdomeres because both of them

Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza, Egypt ABSTRACT Rice is one of the most important food crops for more than half of the world 's population, the rice weevil, Sitophilus oryzae (L.) (Coleoptera: Curculionidae) is a major pest of stored rice in Egypt. The use of nanoparticles as pesticide could be promising alternative strategy to affect pests which have become resistant to pesticides. Two nano materials nano aluminum oxide and nano