larval mortality
Effect of gamma irradiation and/or certain entomopathogenic fungi on the larval Mortality of Galleria mellonella L
... lilacinus against larvae of G. mellonella descending from the irradiated parental males crossed with unir- radiated females or unirradiated males crossed with the irradiated females on some biological aspects was ...
8
Yeast interfering RNA larvicides targeting neural genes induce high rates of Anopheles larval mortality
... The broad application of RNAi for pest control is dependent upon production of dsRNA in an economi- cally feasible, scalable, and sustainable fashion. dsRNA manufacture has traditionally relied on expensive, car- ...
12
Factors affecting fungus induced larval mortality in Anopheles gambiae and Anopheles stephensi
... influence larval mortality caused by fungus, e.g. species and larval stage of mosquito targeted, besides the species, isolate and amount of the fungus ...and larval density is known to have ...
15
Pesticidal Potentials Of Some Red Algal Seaweeds From Tuticorin Coast Against The Tobacco Cutworm Spodoptera Litura Fab. (Lepidoptera: Noctuidae)
... on larval mortality, pre-pupal mortality, pupation, pupal malformation and adult emergence were collected and the means were pooled and analysed statistically were ...
5
An evaluation of efficacy of the auto dissemination technique as a tool for Aedes aegypti control in Madeira, Portugal
... and larval/pupal mortality in ...or larval mortality) than expected from the whole study area is calculated and a likelihood ratio test ...on larval/pupal mortality was available ...
13
Influence of Three Diatom Aldehydes against the Dengue Vector Aedes aegypti (Diptera: Culicidae)
... instar-IV larval mortality was noted among ...instar-IV larval mortality was recorded at ...43.33% mortality of in- star-IV larvae were recorded at OD and DD ...instar-IV larval ...
14
In Vitro Ovicidal and Larvicidal Activities of Stem Bark of Terminalia glaucescens (Combretaceae) against Haemonchus contortus
... and larval stages of Haemonchus contortus of ...Concerning larval mortality, HWE had the high- est effect in L1 larval mortality in all concentration above 1250 ...tle larval ...
11
The development of insecticidal baits for the control of Porina (Wiseana Spp ) : a thesis for the degree of Master of Science in Zoology at Massey University
... The relationship between porina larval mortality and the treated wheat bait No.l density, applied in the field assuming a fenitrothion rate of 0... CHAPTER TEN PERSISTENCE OF BAiTS AND S[r] ...
122
Determinants of selective mortality during the early life history of Spratelloides delicatulus in the northern Great Barrier Reef
... the mortality rates suffered by the larval and juvenile stages of marine fishes are a central determinant of subsequent fluctuations in the size of adult populations (Hjort 1914; Bailey and Houde 1989; ...
80
Global climate change and its impact on the productivity of Muga silkworm (Antheraea assamensis Helfer) in Assam (India)
... percentage, larval mortality during rearing, moth emergence and cocoon yield during the two commercial crops vis-à-vis prevailing meteorological factors were correlated and the effect of climatic change on ...
13
Antifeedant Efficacy of Some Medicinal Plant Extracts Against Leucinodes Orbonalis
... The larval percentage mortality showed in hexane, ethyl acetate, chloroform and methanol extracts of ...% larval mortality was found in ethyl acetate, methanol, chloroform and hexane extracts ...
5
“Biopesticidal Effect of Ethyl Acetate Leaf Extracts of Datura Metel L. (Solanaceae) on the Larvae of Helicoverpa Armigera (Hübner)” by Panneerselvam A, Ramya S, Gopinath K, Periyathambi N, Jayakumararaj R, Aruna Devaraj, India. Digital copy link
... fraction. Larval mortality was observed after 24h of exposure to the plant extracts in different ...highest larval mortality was observed in ethyl acetate fraction ...
5
Eutrophication and predator presence overrule the effects of temperature on mosquito survival and development.
... on larval mortality and adult ...mosquito larval survival and adult emergence by 20–50%, 2) nutrient additions led to a 3-4-fold increase in mosquito adult emergence and a 2-day decrease in develop- ...
13
Aspects of the ecology of Tyria jacobaeae (L ) : a defoliator of ragwart in New Zealand : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Zoology at Massey University
... jacobaeae is presently reduced, in the Wairarapa at least, by high larval mortality, a patchy distribution on the host population and its failure to prevent regrowth of defoliated plants[r] ...
121
The essential oil of Brazilian pepper, Schinus terebinthifolia Raddi in larval control of Stegomyia aegypti (Linnaeus, 1762)
... Since mortality rates could not be normalized by arc- sine transformation, an ordinal logistic regression was performed, taking the dose and duration of exposure to the essential oil as independent variables and ...
7
The development of insecticidal baits for the control of Porina (Wiseana Spp ) : a thesis for the degree of Master of Science in Zoology at Massey University
... number of wheat baits, of three sizes, removed from the surface of turf in bins by porina larvae after 4 days at 20°C.. The relationship between porina larval mortality.[r] ...
14
Efficacy of Bt Transgenic Sugar Beet Lines Expressing cry1Ab Gene Against Spodoptera littoralis Boisd. (Lepidoptera: Noctuidae)
... DAI (df=9 ; F=2.719; P=0.019 ). Based on these findings, transgenic sugar beets had higher efficacy against S. littoralis than the controls. The range of the percent larval mortality was between 17.5% and ...
9
The Effect of Some Plant Extracts on Mosquito Aedes aegypti (L.)
... percentage mortality of the fourth instar of ...The larval mortalities ranged between low or ...of mortality against larval stages, although in most cases a clearly delayed inhibition of adult ...
9
Effect of Medicinal Plant Extracts on Growth and Development of Tobacco Caterpillar, Spodoptera litura (Fabricius)
... The present investigation was undertaken with the objective to evaluate the potential of different medicinal plants to explore their effect on growth and development of S. litura. Five medicinal plants species viz., ...
8
Insecticidal activity of chitosans of different molecular weights and chitosan metal complexes against cotton leafworm Spodoptera littoralis and oleander aphid Aphis nerii
... feeding, larval mortality was scored; if no movement was observed, larvae were consid- ered as ...dead. Larval growth inhibition was assayed relative to the control based on larval weight gain ...
11