Effects of cotton cultivars on feeding of Heliothis armigera and Spodoptera littoralis larvae and on oviposition of Bemisia tabaci

Navon, A.; Melamed-Madjar, Venezia; Zur, M.

doi:10.1016/0167-8809(91)90078-c

Cited by 14 publications

(9 citation statements)

References 7 publications

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“…Based on biological and ecological information published in the two last decades, the immature developmental time of B. tabaci (from egg to adult) depends on the host plant (Coudriet et al , 1985; Van Lenteren & Noldus, 1990; Bethke et al , 1991; Zalom et al , 1995; Tsai & Wang, 1996; Muñiz & Nombela, 1997; Nava‐Camberos et al , 2001) as well as on the whitefly populations or biotypes (Drost et al , 1998; Muñiz, 2000; Muñiz & Nombela, 2001). The developmental time of B. tabaci recorded at 25 °C ranges from 17.3 to 22.8 days when reared on either aubergine, tomato, sweet potato, cucumber, bean or pepper.…”

Section: Discussionmentioning

confidence: 99%

Modelling temperature‐dependent bionomics of Bemisia tabaci (Q‐biotype)

Bonato

Lurette

Vidal

et al. 2006

Physiological Entomology

111

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The influence of temperature (17, 21, 25, 30 and 35 °C) on life-history traits of a Q-biotype Bemisia tabaci population on tomato is studied. Temperaturedependent relationships are characterized for immature developmental rate, immature survival, fecundity, longevity and intrinsic rate of increase. Development time vary from 20 days at 30 °C to 56 days at 17 °C and the lowest thermal threshold is estimated at 10.2 °C. The optimal temperature for immature development is 32.5 °C. Total fecundity (eggs per female) ranges from 105.3 (at 21 °C) to 41 (at 35 °C). The longevity decreases with temperature increase. The intrinsic rate of increase ranges from 0.0450 (at 17 °C) to 0.123 (at 30 °C). The functional relationships between temperature and life-history parameters are used to evaluate the effect of temperature on the population dynamics. Such mathematical relationships could provide a basis for future development of population models.

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Section: Discussionmentioning

confidence: 99%

Modelling temperature‐dependent bionomics of Bemisia tabaci (Q‐biotype)

Bonato

Lurette

Vidal

et al. 2006

Physiological Entomology

111

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“…The abundance of chewing insects was also associated positively with pubescence density and glandularity, contrary to expectation (Table 5). A few studies have reported positive effects of pubescence density on oviposition and on the abundance of individual species of chewing insect (Robinson et al ., 1980; Lambert & Kilen, 1989; Navon et al ., 1991). Such positive associations could arise because of protection from desiccation or natural enemies, or if chewing insects prefer or can oviposit more effectively on leaves with dense pubescence (Treacy et al ., 1986; Eisner et al ., 1998).…”

Section: Discussionmentioning

confidence: 99%

“…(1) Trichomes may prevent or enhance oviposition by affecting the security with which eggs are attached to leaves (Turnipseed, 1977; Khan & Agarwal, 1984; Ramalho et al ., 1984; Baur et al ., 1991; Lambert et al ., 1992; Webster et al ., 1994; Oghiakhe, 1995; Haddad & Hicks, 2000). Several studies have shown that glandular pubescence or dense pubescence are correlated with higher rates of oviposition, but at least one study found the opposite effect (higher: Lukefahr et al ., 1971; Benedict et al ., 1983; Navasero & Ramaswamy, 1991; Navon et al ., 1991; McAuslane, 1996; lower: Webster et al ., 1975). (2) Trichomes may interfere with the rate of movement of an insect over the leaf surface (Ramalho et al ., 1984; Gannon et al ., 1994; Webster et al ., 1994; Oghiakhe, 1995; Eisner et al ., 1998; Zvereva et al ., 1998; Malakar & Tingey, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Glandular exudates from trichomes may repel, attract, adhere to, or be toxic to insects that encounter them (Tingey & Gibson, 1978; Duffey, 1986; Lapointe & Tingey, 1986). (3) Insects that encounter trichomes while feeding may be inhibited from feeding or may suffer reduced growth, fecundity, and survival because trichomes are lower in nutritional quality than other leaf tissues (Benedict et al ., 1983; Lapointe & Tingey, 1986; Navon et al ., 1991; Lambert et al ., 1992; Papp et al ., 1992; Haddad & Hicks, 2000). (4) External‐feeding insects that are small enough to live sheltered within the layer of foliar pubescence may be protected from natural enemies and/or moisture loss (Elsey, 1974; Treacy et al ., 1986; Ezcurra et al ., 1987; Woodman & Fernandes, 1991; Eisner et al ., 1998), however hooked and glandular trichomes can also cause direct mortality (Gilbert, 1971; Tingey & Gibson, 1978; Quiring et al ., 1992; Eisner et al ., 1998).…”

Section: Introductionmentioning

confidence: 99%

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The community‐wide and guild‐specific effects of pubescence on the folivorous insects of manzanitas Arctostaphylos spp.

Andres

Connor

2003

Ecological Entomology

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1. Insect communities on 26 species of manzanita Arctostaphylos spp. (Ericaceae) were sampled in order to examine the effects of variation in foliar pubescence traits on a community of folivorous insects. Manzanitas vary widely in pubescence density, length, and glandularity both within and between species.2. Linear models were fitted and evaluated to determine whether pubescence traits are associated with the species richness and abundance of folivorous insects after accounting for the effects of other relevant habitat and host-plant related characteristics.3. Pubescence traits were clearly associated with both community-wide and guild-specific variation in the structure of the folivorous insect community of manzanitas, however the effects of pubescence were manifested primarily as effects on the abundance of folivores not on species richness. The species richness of folivorous insects on manzanitas was not associated with pubescence density or length but was associated positively with glandularity.4. The abundance of all guilds except leaf-mining insects was lower on manzanitas having longer pubescence. In contrast, the abundance of external-chewing insects was higher on plants having denser pubescence and on plants having glandular pubescence.5. Overall, the results suggest that both longer pubescence and the amount of contact between an insect and pubescence act quantitatively to decrease the abundance of external-feeding guilds of folivorous insects. The abundance of species in internal-feeding guilds that oviposit directly on leaves is unrelated to foliar pubescence traits in the host plant.

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“…Glabrousness, trichome density, latex, acylsugars and glossy foliage have also been linked to resistance. Glabrous cotton cultivars resulted in lower oviposition and few nymphs (Butler et al, 1992, Navon et al, 1991, while glabrous-leafed melons (Cucumis melo) were found to reduce numbers of whitefly stages (adults and nymphs), when compared to commercial pubescent-leafed cultigens (Riley et al, 2001). Higher phenolic and odihydroxy phenolic content of cotton cultivars resulted in fewer eggs oviposited by the Bemisia complex (Butler et al, 1992), and vascular bundle depth was negatively related to B. argentifolii adult and nymph densities (Chu et al, 1998).…”

Section: Whitefly Resistance In Cultivated Cropsmentioning

confidence: 99%