the objective was to study the population development of tuta absoluta (meyrick, 1917) on tomato in greenhouse conditions at droh. the trial assessed the occurrence of t. absoluta adults from the month of october to may in traps; a low numbers is noted. the high numbers recorded (170 adults/greenhouse) are caught at the end of crop cycle. the mean number of capture is 22 adults/ week/ trap. reg...

the tomato fruit borer, helicoverpa armigera (hã¼bner), is a destructive insect pest of many host crops in iran and worldwide. the effect of different tomato cultivars (sun 6108 f1, rio grande ug, korral, ch falat, hed rio grande and cal jn3) was studied on life table parameters of h. armigera under laboratory (25 â± 1 â°c, 65 â± 5% rh and a photoperiod of 16: 8 (l: d) hours), and on the activi...

abstract striped rice stem borer, chilo suppressalis walker (lepidoptera: pyralidae) is a major pest of rice in northern iran. regarding to the importance of population dynamics studies in pest management programs, the population fluctuations of c. suppressalis was studied in central part of mazandaran province (rice research centre of mazandaran) during 2005-2006. the male and female moths wer...

The field experiment was conducted with twenty brinjal varieties/lines during October 2007 to May 2008 to identify shoot and leaf characteristics of brinjal plants for their susceptibility/resistance against brinjal shoot and fruit borer infestation. Borer infestation was influenced by different characters of plant shoot and leaf. Various parameters like plant height, stem diameter, number of b...

ENTOMOLOGY I MR. SANCHEZ NAVARETTE : NO. DR. WIEHE : DO not 'dead hearts' result in some of the drier parts of Mauritius ? MR. WILLIAMS: When there are several borers near the top of a stalk, the top may die. This is different from a 'dead heart'. MR. SANCHEZ NAVARETTE : IS it easy to find several larvae in a single stalk ? MR. WILLIAMS: NO. We usually find one or two. D. W. FEWKES (Trinidad) :...

Abstract Silicon (Si) can improve plant resistance to herbivorous insect attack. Early shoot borer (ESB), is one of the most solemn lepidopterans borers on sugarcane in India. Even with insecticide application, management this pest difficult. The requires a fresh new approach. As result, current study aims determine effect silicon early borer, Chilo infuscatellus Walker, through biophysical fac...

In August 2010 the coffee berry borer, Hypothenemus hampei, was first reported to have invaded the Kona coffee growing region of Hawaii, posing a severe economic challenge to the fourth largest agricultural commodity in the State. Despite its long and widespread occurrence throughout the tropics as the most serious pest of coffee, there are still discrepancies in the literature regarding severa...

Metaparasitylenchus hypothenemi n. sp. (Nematoda: Allantonematidae) is described from the coffee berry borer, Hypothenemus hampei (Ferrari) (Curculionidae: Scolytinae), in Chiapas, Mexico. This species differs from other members of the genus by its small size, annulated cuticle, lateral fields with 3 ridges, free-living stages with an excretory pore located between the pharyngeal gland orifices...

Introduction Invasive alien species can have devastating consequences on native biodiversity, ecosystem and evolutionary processes (Lovett et al. 2006, McNeely 2001, Mooney and Cleland 2001). In the United States alone, economic costs associated with environmental damages and losses as a result of invasive species have been estimated to total between $120-137 billion per year (Pimentel et al. 2...