Biology of Bemisia tabaci (Genn.) B-biotype and parasitism by Encarsia formosa (Gahan) on collard, soybean and tomato plants

Takahashi, Karina Manami; Filho, Evôneo Berti; Lourenção, André Luiz

doi:10.1590/s0103-90162008000600011

Cited by 11 publications

(8 citation statements)

References 18 publications

(8 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the use of chemical is generally not recommended for B. tabaci as the high risk of the toxic residual effect can be hazardous to consumers' health and pest resurgence problem. Recently, B. tabaci was found to be resistant to chemical pesticide (Takahashi et al, 2008). Consequently, botanical insecticides may be potential alternatives of chemical for managing B. tabaci, which make them suitable insecticides for organic agriculture.…”

Section: Introductionmentioning

confidence: 99%

Bioactive compounds and their their antifeedant activity in the cashew nut (Anacardium occidentale L.) shell extract against Bemisia tabaci, (Gennadius, 1889) (Hemiptera:Aleyrodidae)

Andayanie

Nuriana

Ermawaty

2019

AAS

View full text Add to dashboard Cite

The present study was carried out to analyze bioactive compounds and their their antifeedant activityity in the cashew nut (Anacardiaceae) shell extract against Bemisia tabaci. Hexane was used as solvent in the extraction. The result showed that shell extract of total phenolics, flavonoids and tannins were 63.11 mg gallic acid equivalents g-1; 1.79 mg quercetin equivalents g-1; and 16.04 mg gallic acid equivalents g-1, respectively. Gas chromatography mass spectrometry (GC-MS) analyses showed that anacardic acid has the highest concentration (76.93 %) in the extract. The viscous extract of cashew nut at concentration of 0.75 % was able to inhibit the landing and provided an active role as anti-oviposition on B. tabaci. There were significantly fewer landings than after use of insecticide with imidacloprid active compound at concentration of 0.50 %, after 72 h of application. Mortalities of B. tabaci caused by extracts with concentration of 1.50 % and 3.00 % were not significantly different after 24 and 48 h of application. At concentration of 3.00 % there was no phytotoxic effect. The highest mortality of B. tabaci was obtained at concentration of 6.00 %. However, concentration of 6 % of extract caused phytotoxic symptoms on soybean leaves.

show abstract

Section: Introductionmentioning

confidence: 99%

Bioactive compounds and their their antifeedant activity in the cashew nut (Anacardium occidentale L.) shell extract against Bemisia tabaci, (Gennadius, 1889) (Hemiptera:Aleyrodidae)

Andayanie

Nuriana

Ermawaty

2019

AAS

View full text Add to dashboard Cite

show abstract

“…3 rd -instar nymphs were used in this study because the development of E. formosa is more synchronized at this life stage1736. Twenty newly emerged B. tabaci adults (B or Q) were placed on the abaxial surface of a selected host leaf of a tomato plant (infected or not infected with TYLCV); the adults and leaf were contained in a leaf clip-cage (one clip cage per plant).…”

Section: Methodsmentioning

confidence: 99%

Effects of plant virus and its insect vector on Encarsia formosa, a biocontrol agent of whiteflies

Liu

Xiang

Jiao

et al. 2014

Sci Rep

View full text Add to dashboard Cite

In this study, we investigated the tritrophic interactions among a persistently transmitted plant virus, Tomato yellow leaf curl virus (TYLCV), its insect vector, the sweetpotato whitefly Bemisia tabaci, and a parasitoid, Encarsia formosa Gahan, one of the most extensively used biological control agents. As an emerging invasive pest worldwide, the two most damaging whiteflies are B. tabaci B and Q cryptic species. On healthy tomato plants, parasitoid-induced mortality was significantly higher in B. tabaci B than in Q. In contrast, similar mortality levels of B and Q were observed on TYLCV-infected plants. A higher rate of parasitism was consistently observed in B, independent of the TYLCV infection. Similarly, the life history traits of E. formosa were influenced by both TYLCV and the two cryptic species of B. tabaci. Specifically, E. formosa parasitizing B had a greater adult longevity and shorter developmental time on healthy plants, whereas the parasitoids developing from Q has a greater adult longevity on TYLCV-infected plants. The emergence rate of E. formosa was unaffected by either B. tabaci cryptic species or the virus. These results suggest that the vector-borne pathogen can manipulate the host suitability of a parasitoid and hence the parasitoid-host interactions.

show abstract

“…The increase of B. tabaci eggs at 4-6 WAP was because B. tabaci has been in the second generation at 5 WAP, hence the number of eggs increased at 6 WAP. Takahashi et al (2008) stated that the life cycle of whitefly from eggs to adult on soybean and tomato plants was 21 days. The increase in the number of eggs was influenced by the growth of the host plant, which is the bigger host plant, the more nutrient was needed.…”

Section: Population Development Pattern Of Bemisia Tabacimentioning

confidence: 99%

Correlation between Epidermis Thickness, Leaf Trichome Length and Density with the Whitefly Bemisia tabaci Population on Five Local Soybean Cultivars

Lutfi

Hidayat

Maryana

2019

JPTI

View full text Add to dashboard Cite

Soybeans compsumsion in Indonesia is about 2.7 million ton, while the national production is only about 0.7 million ton per year. There are some problems in the soybean production in Indonesia, including pests and diseases. Whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), is one of the important pests in soybeans causes a significant loss of yields. Developing soybean cultivars resistant to whitefly is one of method to reduce the production loss. This study aimed to determine the relationship between the physical characteristics of lower surface leaves and B. tabaci population on five local soybean cultivars. The experiments were conducted in the IPB greenhouse by Completely Randomized Design (RCD) using five soybean cultivars (Anjasmoro, Dena-1, Detam-3, Devon-1, and Wilis) with 3 replicates. Three plants of each cultivar were planted in a polybag, put under a cage, and after one week then infested with 5 female whiteflies. The parameters observed in this study were leaf epidermal thickness; density and length of trichome on lower leaf surface; and the number of egg, nymph, and adult of the whitefly. Observations were carried out every week, from 1−7 weeks after the plant was infested with the whitefly. The population of whitefly was affected by trichome density and length, as well as by the epidermal thickness of the lower leaf surface. The infestation of B. tabaci was higher in the soybean cultivars with denser and longer leaf trichomes, and thinner epidermal of the lower leaf surface. This result of this research suggests that it is necessary to include the characteristics of leaf trichome and epidermal thickness in the breeding program to produce soybean cultivars that are superior in productivity and resistant to whitefly.

show abstract

Biology of Bemisia tabaci (Genn.) B-biotype and parasitism by Encarsia formosa (Gahan) on collard, soybean and tomato plants

Cited by 11 publications

References 18 publications

Bioactive compounds and their their antifeedant activity in the cashew nut (Anacardium occidentale L.) shell extract against Bemisia tabaci, (Gennadius, 1889) (Hemiptera:Aleyrodidae)

Bioactive compounds and their their antifeedant activity in the cashew nut (Anacardium occidentale L.) shell extract against Bemisia tabaci, (Gennadius, 1889) (Hemiptera:Aleyrodidae)

Effects of plant virus and its insect vector on Encarsia formosa, a biocontrol agent of whiteflies

Correlation between Epidermis Thickness, Leaf Trichome Length and Density with the Whitefly Bemisia tabaci Population on Five Local Soybean Cultivars

Contact Info

Product

Resources

About