| toxicity of chemicals commonly used in indonesian vegetable crops to liriomyza huidobrensis populations and the indonesian parasitoids hemiptarsenus varicornis, opius sp., and gronotoma micromorpha, as well as the australian parasitoids hemiptarsenus varicornis and diglyphus isaea. | liriomyza huidobrensis (blanchard) and liriomyza sativae (blanchard) are important pests of vegetable crops in indonesia and are likely to spread to neighboring countries. three pesticides (dimehypo, abamectin, and cyromazine) are currently used to control these pests, but there is little information on their effectiveness against field populations and on their impact on parasitoids controlling liriomyza species. the toxicity of these chemicals to l. huidobrensis and three common parasitoids (he ... | 2004 | 15384326 |
| juvenile and sublethal effects of selected pesticides on the leafminer parasitoids hemiptarsenus varicornis and diglyphus isaea (hymenoptera: eulophidae) from australia. | the pest leafminers liriomyza huidobrensis (blanchard), liriomyza sativae (blanchard), and liriomyza trifolii (burgess) (diptera: agromyzidae) have spread into south east asia and oceania, and they are likely to reach australia in the near future. two translaminar pesticides, cyromazine and abamectin, currently provide effective chemical control of these pests, but because parasitoids can play an important role in controlling and preventing leafminer outbreaks, understanding the impact of pestic ... | 2005 | 16539101 |
| improving the biological control of leafminers (diptera: agromyzidae) using the sterile insect technique. | the leafminer liriomyza trifolii (burgess) (diptera: agromyzidae) is a worldwide pest of ornamental and vegetable crops. the most promising nonchemical approach for controlling liriomyza leafminers in greenhouses is regular releases of the parasitoid diglyphus isaea (walker) (hymenoptera: eulophidae). in the current study, we examine the hypothesis that the use of d. isaea for biological control of leafminers in greenhouse crops may be more practical and efficient when supplemented with addition ... | 2006 | 16937669 |
| phytotoxicity of tolylfluanid in tomatoes. | the use of euparen multi (tolylfluanid) for controlling botrytis cinerea in tomatoes has been decreased the last decade for several reasons. because of the lack of different fungicides with a good efficacy it is important that growers can use different fungicides to prevent development of resistance of botrytis cinerea against many fungicides. tolylfluanid has negative side effects on some insect populations that are used for biological control. it is known that euparen multi and euparen can hav ... | 2006 | 17390776 |
| parasitic hymenoptera fauna on agromyzidae (diptera) colonizing weeds in ecological compensation areas in northern italian agroecosystems. | parasitoids (hymenoptera) associated with agromyzid leafminers (diptera: agromyzidae) were studied in three rural farms located in northern italy. the parasitoids were reared from mined foliage of weeds growing in field margins. we reared 998 hymenoptera specimens, representing five families, 23 genera, and 53 species, from leafminers infesting weeds. eulophidae was the most abundant family (67.64%), followed by braconidae (28.86%), eucoilinae (1.40%), tetracampidae (1.40%), and pteromalidae (0. ... | 2007 | 17461050 |
| abamectin, pymetrozine and azadirachtin sequence as a unique solution to control the leafminer liriomyza trifolii (burgess) (diptera: agromyzidae) infesting garden beans (phaseolus vulgaris l.) in egypt. | field trails were conducted to determine the performance of three different sequences as a unique solution for the control of the leaf miner liriomyza trifolii (burgess) (diptera: agromyzidae) infesting garden beans (phaseolus vulgaris l.) during the two successive seasons of 2004 and 2005. furthermore, during the evaluation period, the side effect against the ectoparasite diglyphus isaea (walker) (hymenoptera: eulophidae) was put into consideration. meanwhile, the comparative evaluation of the ... | 2007 | 18399491 |
| lifetime gains and patterns of accumulation and mobilization of nutrients in females of the synovigenic parasitoid, diglyphus isaea walker (hymenoptera: eulophidae), as a function of diet. | in nature, adult parasitoids feed to obtain and use nutrients for supplementing and/or replenishing some of their existing array of nutrient reserves. when adults feed on host or non-host food, they can enhance fitness, typically by increasing egg production or longevity. in the present study, ovigeny index (oi) and impact of female fitness, as well as physiological state on the reproductive strategies, were investigated in the synovigenic parasitoid, diglyphus isaea, fed on host food (2-3rd ins ... | 2011 | 21641912 |