scholarly journals Development and reproduction of Podisus distinctus (Heteroptera: Pentatomidae) fed on larva of Bombyx mori (Lepidoptera: Bombycidae)

2004 ◽  
Vol 64 (2) ◽  
pp. 237-242 ◽  
Author(s):  
M. C. Lacerda ◽  
A. M. R. M. Ferreira ◽  
T. V. Zanuncio ◽  
J. C. Zanuncio ◽  
A. S. Bernardino ◽  
...  
Keyword(s):  
Biological Control ◽  
Life Cycle ◽  
Relative Humidity ◽  
Bombyx Mori ◽  
Insect Pests ◽  
Males And Females ◽  
Heteroptera Pentatomidae ◽  
Bombyx Mori L ◽  
Chemical Products ◽  
Coleoptera Tenebrionidae

Biological control has been reducing the use of chemical products against insect pests, specially predatory Pentatomidae. Species of this group can present high variations in their life cycle as a result of their diet. Thus, the objective of this research was to study nymph development and reproduction of Podisus distinctus (Stäl, 1860) (Heteroptera: Pentatomidae) fed on Bombyx mori L., 1758 (Lepidoptera: Bombycidae) larvae (T1), compared to those fed on Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae) (T2) and Musca domestica L., 1758 (Diptera: Muscidae) larvae (T3) at a temperature of 25 ± 0.5ºC, relative humidity of 70 ± 2%, and photophase of 12 h. Predators fed on B. mori showed duration of the nymph phase (18.68 ± 1.02) similar to those fed on T. molitor (18.32 ± 1.49). Pre-oviposition and oviposition periods and number of egg masses, besides eggs and nymphs per female, were higher with B. mori (5.83 ± 2.02; 15.00 ± 7.40; 8.42 ± 1.84; 296.69 ± 154.75; and 228.55 ± 141.04, respectively) while longevity of males and females of P. distinctus was 25.76 ± 16.15 and 35.00 ± 16.15 days with T. molitor, and 20.57 ± 13.60 and 23.46 ± 12.35 days with B. mori, respectively.

scholarly journals The density of females of Palmistichus elaeisis Delvare and LaSalle (Hymenoptera: Eulophidae) affects their reproductive performance on pupae of Bombyx mori L. (Lepidoptera: Bombycidae)

2010 ◽  
Vol 82 (2) ◽  
pp. 323-331 ◽  
Author(s):  
Fabricio F. Pereira ◽  
José C. Zanuncio ◽  
José E. Serrão ◽  
Teresinha V. Zanuncio ◽  
Dirceu Pratissoli ◽  
...  
Keyword(s):  
Life Cycle ◽  
Relative Humidity ◽  
Sex Ratio ◽  
Bombyx Mori ◽  
Reproductive Performance ◽  
Climatic Chamber ◽  
Glass Tubes ◽  
Bombyx Mori L

Palmistichus elaeisis Delvare and LaSalle (Hymenoptera: Eulophidae) is a gregarious and polyphagous parasitoid mainly of Lepidoptera pupae. The objective of this paper as to study the developent of parasitoid on Bombyx mori L. (Lepidoptera: Bombycidae) pupae exposed to one, nine, 18, 27, 36, 45 or 54 female P. elaeisis, respectively. The females of the parasitoid remained in contact with pupae for 24 hours in glass tubes (14.0 x 2.2 cm), packed in a climatic chamber regulated at 25 ± 2°C, 70 ± 10% relative humidity and photo phase of 12 hours. With the exception of density 1:1 (72.72%), in other densities parasitism was 100%. Adults of P. elaeisis did not emerge from pupae at densities of 1:1 and 9:1, but 100.0% of parasitoid emergence was observed at the density of 45:1 and 54.54% at 54:1. The duration of the life cycle of this parasitoid ranged from 20 to 28 days. P. elaeisis produced 49 to 589 descendants per pupa of B. mori. The sex ratio of P. elaeisis ranged from 0.93 ± 0.01 to 0.97 ± 0.01 without differences with 18, 27, 36, 45 and 54 females/host. This parasitoid should be reared with the density of 45 females per pupa of B. mori.

scholarly journals Reproductive performance of Palmistichus elaeisis Delvare and LaSalle (Hymenoptera: Eulophidae) with previously refrigerated pupae of Bombyx mori L. (Lepidoptera: Bombycidae)

2009 ◽  
Vol 69 (3) ◽  
pp. 865-869 ◽  
Author(s):  
FF. Pereira ◽  
JC. Zanuncio ◽  
JE. Serrão ◽  
PL. Pastori ◽  
F.S. Ramalho
Keyword(s):  
Biological Control ◽  
Life Cycle ◽  
Bombyx Mori ◽  
Reproductive Performance ◽  
Mass Rearing ◽  
Bombyx Mori L

The mass rearing of parasitoids represents a fundamental stage for programmes of biological control. The progeny of the parasitoid Palmistichus elaeisis Delvare and LaSalle (Hymenoptera: Eulophidae) were evaluated on previously refrigerated pupae of Bombyx mori L. (Lepidoptera: Bombycidae). Forty-eight to 72 hours-old pupae of B. mori were stored at 10 ºC for five, 10, 15 or 20 days and then exposed to parasitism by P. elaeisis females. This parasitoid showed shorter duration of the life cycle when reared on pupae of B. mori which were previously stored at 10 ºC during 15 days. P. elaeisis parasitized 100% of the pupae of B. mori after storage at 10 ºC during all periods with emergence of this parasitoid from 78 to 100% of these pupae. P. elaeisis had a higher number of progeny per pupa of B. mori stored for 15 days at 10 ºC. Pupae of B. mori can be stored for 15 days at 10 ºC before being used to rear P. elaeisis.

scholarly journals Lightweight males of Podisus nigrispinus (Heteroptera: Pentatomidae) neglect lightweight females due low reproductive fitness

2016 ◽  
Vol 77 (2) ◽  
pp. 267-276 ◽  
Author(s):  
A. I. A. Pereira ◽  
R. B. Silva ◽  
W. S. Tavares ◽  
J. B. Malaquias ◽  
J. C. Zanuncio
Keyword(s):  
Stink Bugs ◽  
High Quality ◽  
Gossypium Hirsutum L ◽  
Nymphal Stage ◽  
Male And Female ◽  
Food Shortages ◽  
Quality Diet ◽  
Males And Females ◽  
Heteroptera Pentatomidae ◽  
Coleoptera Tenebrionidae

Abstract Sexual choice by male stink bugs is important because females that experience food shortages lay fewer eggs with lower viability compared with well-fed females. In this study, we investigated whether Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) males fed with a low-quality diet during its nymphal stage show selectivity for sexual partners resulting in high-quality progeny. Lightweight males and females were obtained from nymphs fed weekly with Tenebrio molitor L. (Coleoptera: Tenebrionidae) pupae. By contrast, heavyweight males and females were fed three times a week and received an extra nutritional source: cotton leaves, Gossypium hirsutum L. (Malvaceae). Lightweight males preferred to mate with heavy females (77.78 ± 14.69%), whereas heavyweight males did not discriminated between light or heavyweight females. Females mated with lightweight males showed similar levels of reproduction to those mated with heavyweight males. The results provide an indication of the importance of male and female body weight for sexual selection in Asopinae stink bugs.

Studies on Theocolax formiciformis Westw. (Hym., Pteromalidae), a parasite of Anobium punctatum (Deg.) (Col., Anobiidae)

1964 ◽  
Vol 54 (4) ◽  
pp. 797-803 ◽  
Author(s):  
Jean M. Taylor
Keyword(s):  
Biological Control ◽  
Life Cycle ◽  
Relative Humidity ◽  
Wood Surface ◽  
Biological Control Agent ◽  
Glass Plate ◽  
Control Agent ◽  
Large Numbers ◽  
Cent Relative Humidity ◽  
Anobium Punctatum

A description is given of the life-cycle in Britain of Theocolax formiciformis Westw. (Pteromalidae), a parasite of Anobium punctatum (Deg.) (Anobiidae). Adults emerge from infested wood in large numbers from April to June. Eggs are laid through the wood surface and use was made of this habit as a means of rearing this parasite under observation in the laboratory. Anobium larvae were placed individually in channels gouged in the surface of 3-inch squares of plywood. They were covered with tracing paper and the parasites were caged on this by means of a glass ring covered with a glass plate. Development from egg to adult at 22 and 25°C., and 75 per cent, relative humidity, averaged about five and six weeks, respectively, compared with 12 weeks outdoors in summer. The number of progeny per female was highest (approximately five) at 22°C., at which the ratio of males to females was 1:3. Only about one per cent, of the adults reared were winged. The use of Theocolax as a biological-control agent is not considered practical.

scholarly journals Attack behavior of Podisus rostralis (Heteroptera: Pentatomidade) adults on caterpillars of Bombyx mori (Lepidoptera: Bombycidae)

2005 ◽  
Vol 48 (6) ◽  
pp. 975-981 ◽  
Author(s):  
Walkymário Paulo Lemos ◽  
José Cola Zanuncio ◽  
José Eduardo Serrão
Keyword(s):  
Bombyx Mori ◽  
Posterior Part ◽  
Fourth Instar ◽  
Attack Behavior ◽  
Defense Reaction ◽  
Predator Prey ◽  
Old Adults ◽  
Heteroptera Pentatomidae ◽  
Bombyx Mori L ◽  
Made In

Attack behavior of the predator Podisus rostralis (Stäl) (Heteroptera: Pentatomidae) adults on fourth instar Bombyx mori L. (Lepidoptera: Bombycidae) caterpillars was studied in laboratory conditions. Ten 24 hours old adults of this predator were observed during two hours with the following attack behavior: (1) Predator: prey finding; prey observation; touching prey with antenna; attack behavior; prey paralysis; predator retreat after attack; attack cessation; successive attacks; and (2) Prey: defense. The predator P. rostralis found its prey before attacking and it approached it with slow circular movements. The attack was usually made in the posterior part of the prey to reduce defense reaction. Larger size of prey in relation to the predator resulted difficult prey paralysis but it occurred in less than two hours.

scholarly journals Effect of female weight on reproductive potential of the predator Brontocoris tabidus (Signoret, 1852) (Heteroptera: Pentatomidae)

2005 ◽  
Vol 48 (2) ◽  
pp. 295-301 ◽  
Author(s):  
Isaias Oliveira ◽  
José Cola Zanuncio ◽  
José Eduardo Serrão ◽  
Teresinha Vinha Zanuncio ◽  
Tobias Baruc Moreira Pinon ◽  
...  
Keyword(s):  
Reproductive Potential ◽  
Mass Rearing ◽  
Adult Longevity ◽  
Egg Mass ◽  
Egg Masses ◽  
Egg Incubation ◽  
Males And Females ◽  
Heteroptera Pentatomidae ◽  
Female Weight ◽  
Coleoptera Tenebrionidae

The objective of this work was to determine the fecundity of the predator Brontocoris tabidus (Signoret) (Heteroptera: Pentatomidae) females of two weight classes aiming to define, which one presented higher productivity in the laboratory. Males and females of B. tabidus were reared from nymphs fed with Tenebrio molitor L. (Coleoptera: Tenebrionidae) pupae in laboratory. Females of B. tabidus weighting 95 to 150 mg and those with 160 to 220 mg constituted two treatments. Oviposition period and numbers of egg masses, eggs and nymphs per female of B. tabidus were higher in the treatment with heavier females, while the periods of preoviposition, between egg mass laying, egg incubation and number of eggs per egg mass, besides the percentage of nymphs hatched and adult longevity were similar between treatments. Heavier females of B. tabidus presented better productivity and for this reason they should be used in programs of mass rearing this predator.

scholarly journals Influence of external environmental factors on the productivity of mulberry silkworm (Bombyx mori L) in different sizes of silk breeding organizations

2021 ◽  
Vol 258 ◽  
pp. 04047
Author(s):  
K Jumagulov ◽  
N Rajabov ◽  
KH Rakhmanova ◽  
O. Karimov ◽  
Z Sharapova ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Environmental Factors ◽  
Bombyx Mori ◽  
Bombyx Mori L ◽  
Mulberry Silkworm ◽  
Technical Measures ◽  
Silkworm Bombyx Mori

The information presented in this article suggests that the larger the silkworm breeding organization (SBO), the harder it is to maintain a comfortable temperature, relative humidity, and other environmental factors, resulting in the development of silkworm cocoons. differently, the process of implementing agro-technical measures is disrupted. As a result, industrial cocoons are reported to have a yield of 14-17%, viability 22-25%, worm life 7-9 days and silkworm cocoons 7-13%.

scholarly journals Status of Paliga auratalis (Lepidoptera: Crambidae) as black potato pest and its control strategy using natural enemies: Paliga auratalis moth as black potato pest in Indonesia

2021 ◽  
Vol 2 (2) ◽  
pp. 121-125
Author(s):  
Erniwati Erniwati ◽  
◽  
Tiara Sayusti ◽  
Woro Anggraitoningsih Noerdjito ◽  
◽  
...  
Keyword(s):  
Biological Control ◽  
Life Cycle ◽  
Natural Enemies ◽  
Control Strategy ◽  
Insect Pests ◽  
Insect Pest ◽  
Biological Control Agents ◽  
Potato Plants ◽  
Potato Culture ◽  
The Status

Plectranthus rotundifolius is an edible tuber that widely distributed in Asia, covers India, Sri Lanka, Malaysia, and Indonesia. Plectranthus rotundifolius which commonly called as black potato in Indonesia is potential to be developed for national food diversification due to its high carbohydrates. However, one of challenges in black potato culture is the existence of moth pest infected the plants. This study was aimed to evaluate the status of Paliga auratalis moth as an insect pest in black potato plant and to develop the countermeasure strategy through its natural enemies. Observation and collection of P. auratalis and other potential insect pests was conducted in 12 black potato plantations located in five provinces of Java Island. The life cycle of P. auratalis was observed in the laboratory of Zoology Division, Research Center for Biology, Indonesian Institute of Science. Rearing of unhealthy P. auratalis larvae was also conducted to observe its natural enemies. We identified five species of moths infested black potato plants i.e.: Argyrograma sp., Pycnarmon cribat, Pleuroptya punctimarginalis, Rehimena diemenalis, and Paliga auratalis. Based on our observation, we confirmed that. P. auratalis is the main insect pest in Java Island with serious stack status. P. auratalis spend its lifecycle from eggs to adult between 25 – 32 days with the total eggs about 60-80 per female individual. We also identified two parasitic wasps as the natural enemies of P.auratalis i.e.: Aspanteles sp. and Cryptopimpla sp. which are potential to be a biological control agents of P. auratalis.

Sign in / Sign up

Export Citation Format

Share Document