| 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 |
| populations of predators and parasitoids of bemisia tabaci (hemiptera: aleyrodidae) after the application of eight biorational insecticides in vegetable crops. | the sweetpotato whitefly, bemisia tabaci (gennadius) (hemiptera: aleyrodidae), is an important pest of vegetables and many other crops worldwide. eight biorational insecticides (based on oil, plant derivatives, insect growth regulator and fungus) were evaluated in the field for their influence on populations of six natural enemies of b. tabaci. natural populations of two predators [chrysoperla carnea stephen (neuroptera: chrysopidae) and orius spp. (hemiptera: anthocoridae)] and two genera of pa ... | 2011 | 21480463 |
| feeding preference of macrolophus caliginosus (heteroptera: miridae) on bemisia tabaci and trialeurodes vaporariorum (homoptera: aleyrodidae). | a study of predation choices of macrolophus caliginosus wagner (heteroptera: miridae) late instars and adults, when offered various developmental stages (eggs and nymphs) of the recently established whitefly bemisia tabaci (gennadius) (homoptera: aleyrodidae), was made based on two preference indices. in addition, prey choices of late instars when presented with three ratios of trialeurodes vaporariorum (westwood) (homoptera: aleyrodidae) and b. tabaci at a similar developmental stage (eggs, you ... | 2006 | 16937666 |
| impact of macrolophus caliginosus presence on damage production by dicyphus tamaninii (heteroptera: miridae) on tomato fruits. | in northeast spain, the most common predators found in tomato fields and greenhouses are the mirids macrolophus caliginosus wagner and dicyphus tamaninii wagner. natural colonization occurs during the growing season and both species prey on whiteflies. because d. tamaninii can damage tomato fruits during periods of prey scarcity, a semifield experiment was carried out to evaluate whether the presence of m. caliginosus affects damage produced by d. tamaninii. in a tomato greenhouse, 60 plants wer ... | 2002 | 12539821 |
| odour-mediated responses of a predatory mirid bug and its prey, the two-spotted spider mite. | it has been shown that many natural enemies of herbivorous arthropods use herbivore induced plant volatiles (hipvs) to locate their prey. herbivores can also exploit cues emitted by plants infested with heterospecifics or conspecifics. a study was conducted to test whether green bean hipvs as well as odours emitted directly by spider mites influenced the orientation behaviour of the predatory mirid bug, macrolophus caliginosus and its prey, tetranychus urticae in a y-tube olfactometer. our resul ... | 2006 | 16933018 |
| compatibility among entomopathogenic hyphocreales and two beneficial insects used to control trialeurodes vaporariorum (hemiptera: aleurodidae) in mediterranean greenhouses. | the effect of the combined use of encarsia formosa or macrolophus caliginosus and one of three marketed mycoinsecticides, mycotal-« (leucanicillium muscarium-based), naturalis-lôäó (beauveria bassiana-based) and preferal-« (isaria fumosorosea-based), on the control of the whitefly, trialeurodes vaporariorum, was studied under laboratory and greenhouse conditions. the results of both types of tests, the bioassays and the greenhouse trials, for all combinations of e. formosa with each of the three ... | 2011 | 21679715 |
| biological agents for whitefly control in sardinian greenhouse tomatoes. | to evaluate the effectiveness of alternative options for biocontrol of whiteflies in greenhouse tomatoes, an experiment was carried out during the cropping season 2005-2006 in one of sardinia's major horticultural districts (s. margherita di pula, cagliari, italy). twelve long-cycle and 17 short-cycle tomato crops (8 autumn and 9 spring crops) were surveyed. all of them were treated for insect pest control at the beginning of the growing season, but in 19 out of 29 cases whitefly natural enemies ... | 2009 | 20222592 |