Multigenerational migration of fall armyworm, a pest insect

Modeling seasonal migration of fall armyworm moths.

Fall armyworm, Spodoptera frugiperda (J.E. Smith), is a highly mobile insect pest of a wide range of host crops. However, this pest of tropical origin cannot survive extended periods of freezing temperature but must migrate northward each spring if it is to re-infest cropping areas in temperate regions. The northward limit of the winter-breeding region for North America extends to southern regi...

Innovation Lab for Integrated Pest Management Pest Risk Assessment of the Fall Armyworm, Spodoptera frugiperda in Egypt

Acetylcholinesterase and insect growth inhibitory activities of Gutierrezia microcephala on fall armyworm Spodoptera frugiperda J.E. Smith.

From the aerial parts of Gutierrezia microcephala (Asteraceae), four oxyflavones were isolated, namely 5,7,2'-trihydroxy-3,6,8,4',5'-pentamethoxyflavone (1); 5,7,4'-trihydroxy-3,6,8-trimethoxyflavone (2); 5,7,2',4'-tetrahydroxy-3,6,8,5'-tetramethoxyflavone (3); 5,2'-dihydroxy-3,6,7,8,4',5'-hexamethoxyflavone (4), and an ent-clerodane, bacchabolivic acid (5). Compounds 1-5, the synthetic methyl ...

Insect Pest Control

In October 2004 the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture celebrated 40 years of existence. The creation in October 1964 of this Division, which includes the Insect Pest Control Subprogramme, marked the beginning of what is certainly a unique and arguably the best example of inter-agency cooperation within the whole UN family. The goal was to join the talents and...

Insect Growth Regulators for Insect Pest Control*

Insecticides with growth regulating properties (IGR) may adversely affect insects by regulating or inhibiting specific biochemical pathways or processes essential for insect growth and development. Some insects exposed to such compounds may die due to abnormal regulation of hormone-mediated cell or organ development. Other insects may die either from a prolonged exposure at the developmental st...