scholarly journals Predation capacity and larval development of Ceraeochrysa claveri (Neuroptera: Chrysopidae) fed with Raoiella indica (Acari: Tenuipalpidae)

2021 ◽  
Vol 53 (2) ◽  
pp. 225-231
Author(s):  
Martín Palomares-Pérez Palomares-Pérez ◽  
Yadira Contreras-Bermúdez ◽  
Pedro Fabián Grifaldo-Alcántara ◽  
Rosa Elia García-García ◽  
Manuel Bravo-Núñez ◽  
...  
Keyword(s):  
Larval Development ◽  
Integrated Management ◽  
Cocos Nucifera ◽  
Reproductive Potential ◽  
Pupal Stage ◽  
Agricultural Pests ◽  
Agricultural Ecosystems ◽  
Phytophagous Mites ◽  
Raoiella Indica ◽  
Cocos Nucifera L

Ceraeochrysa claveri Navás (Neuroptera: Chrysopidae) is a predator found in several agricultural ecosystems and feeds on insects and phytophagous mites. Its high reproductive potential and forage capacity makes it a candidate for biological control of agricultural pests. Raoiella indica Hirst (Acari: Tenuipalpidae) is an important pest that can damage several species of palms, in particular, Cocos nucifera L. Given the scarcity of available knowledge about the biological aspects of Chrysopidae fed with phytophagous mites, the present work aimed to study the larval development of C. claveri fed mainly with R. indica, in order to obtain information that would be of help in the integrated management of this pest. The evaluation was performed in the F0 generation. Larva 3 is the instar that consumes the most mites (F value = 32.99; P > 0.0001) (L3: 46.80 ± 10.12 a; L2: 9.80 ± 1.23 b; L1: 9.40 ± 1.58 b). C. claveri did not complete larval development when fed only with R. indica. Larval instars L1, L2 and L3 lived 7.4 ± 2.2, 7.6 ± 1.9 and 9.0 ± 3.9 days, respectively. The larvae that reached the pupal stage failed to grow further. When adding Sitotroga cerealella Olivier (Lepidoptera: Gelechidae) eggs to the diet, the development lasted 7.9 ± 0.2, 7.4 ± 0.8, 6.5 ± 0.9 and 13.6 ± 0.9 days for L1, L2, L3 and pupae, respectively. The adults lived on average 6.7 ± 4.9 days. The sexual ratio was rt = 0.42. According to the conditions under which the experiment was carried out, it can be inferred is that C. claveri cannot complete its development by feeding only on R. indica, and that it thus consumes this mite as an occasional prey. Highlights: Ceraeochrysa claveri is a predator found in various agricultural ecosystems and feeds on insects and phytophagous mites. Raoiella indica is an important mite that can damage several species of palms, in particular Cocos nucifera Ceraeochrysa claveri does not complete its biological cycle by feeding only on indica. By adding another protein source to L3, it can reach the adult stage in 35.4±2.8 days. Ceraeochrysa claveri does not complete its cycle by feeding only on R. indica and consequently takes this mite as occasional prey.

scholarly journals Incidence and seasonal occurrence ofmites (Acari) on coconut inWestBengal, India*

Zoosymposia ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 82-85 ◽  
Author(s):  
DEBJANI BANERJEE ◽  
SALIL K. GUPTA
Keyword(s):  
West Bengal ◽  
Feeding Habits ◽  
Cocos Nucifera ◽  
Seasonal Occurrence ◽  
Yield Reduction ◽  
Aceria Guerreronis ◽  
Phytophagous Mites ◽  
Coconut Mite ◽  
One Year ◽  
Cocos Nucifera L

Coconut (Cocos nucifera L.) is an important crop in West Bengal, India. The coconut mite, Aceria guerreronis Keifer (Eriophyidae), is becoming a serious threat to its cultivation in that state. This mite lives underneath the perianth, attacking the epidermis and causing damage that leads to considerable yield reduction. The same habitat was found to be shared by several other mites during a one year study in a coconut orchard in South 24 Parganas District ofWest Bengal, in 2007–2008. In total, 11 species of nine families were found in this study, including mites of different feeding habits, but mainly predatory and phytophagous mites. Neoseiulus paspalivorus (De Leon) was the predominant predator, while A. guerreronis was the predominant phytophagous species. Both were found throughout the year. The highest abundance of those species occurred in April and June, respectively. The association of N. paspalivorus and A. guerreronis has been observed in different countries and in other parts of India.

scholarly journals Exploring the host range of the red palm mite (Raoiella indica) in Kerala, India*

Zoosymposia ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 86-92 ◽  
Author(s):  
BRYONY TAYLOR ◽  
MUJEEB RAHMAN ◽  
SEAN T. MURPHY ◽  
VALLIKKAT V. SUDHEENDRAKUMAR
Keyword(s):  
Host Range ◽  
New World ◽  
Cocos Nucifera ◽  
Old World ◽  
Musa Spp ◽  
Red Palm Mite ◽  
Mixed Crop ◽  
Areca Catechu ◽  
Raoiella Indica ◽  
Cocos Nucifera L

Current published records indicate that the red palm mite (RPM), Raoiella indica Hirst, has a much broader host range in the New World than in the Old World. Therefore, a series of studies were carried out in Kerala, India in 2009 and 2010 to elucidate the presence or absence of R. indica colonies on hosts in addition to coconut Cocos nucifera L., and betel-nut palm, Areca catechu L., the only previously reported host plants in India. We evaluated the following: RPM numbers on coconut and Musa spp. grown in Kerala; the presence of RPM on coconut and bananas grown as a mixed crop; and the possible presence of RPM on palms and other selected plant species mostly grown as ornamentals or reported to be hosts of the RPM in the NewWorld. Results showed that RPM was found in extremely low numbers on Musa spp., never clearly colonizing those plants. The pygmy date palm, Phoenix roebelenii O´Brien, was found to be an additional breeding host in Kerala, as multi-generational colonies were found on a plant of this species. Possible reasons for observed differences in RPM host ranges between the Old World and the New World are discussed.

Growth of Dracaena marginata and Spathiphyllum ‘Petite’ in Sphagnum Peat- and Coconut Coir Dust-based Growing Media

1999 ◽  
Vol 17 (1) ◽  
pp. 49-52 ◽  
Author(s):  
Robert H. Stamps ◽  
Michael R. Evans
Keyword(s):  
Growth Parameters ◽  
Cocos Nucifera ◽  
Greenhouse Production ◽  
Growing Media ◽  
Sphagnum Peat ◽  
Affected Plant ◽  
Coir Dust ◽  
Media Component ◽  
The Media ◽  
Cocos Nucifera L

Abstract A comparison was made of Canadian sphagnum peat (SP) and Philippine coconut (Cocos nucifera L.) coir dust (CD) as growing media components for greenhouse production of Dracaena marginata Bak. and Spathiphyllum Schott ‘Petite’. Three soilless foliage plant growing mixes (Cornell, Hybrid, University of Florida #2 [UF-2]) were prepared using either SP or CD and pine bark (PB), vermiculite (V), and/or perlite (P) in the following ratios (% by vol): Cornell = 50 CD or SP:25 V:25 P, Hybrid = 40 CD or SP:30 V:30 PB, UF-2 = 50 CD or SP: 50 PB. Dracaena root growth was not affected by treatments but there were significant mix × media component interactions that affected plant top growth parameters. In general, the growth and quality of D. marginata were reduced by using CD in Cornell, had no effect in Hybrid, and increased in UF-2. S. ‘Petite’ grew equally well in all growing mixes regardless of whether CD or SP was used; however, plants grew more in Cornell and Hybrid than in UF-2. S. ‘Petite’ roots, which were infested with Cylindrocladium spathiphylli, had higher grades when grown in CD than when the media contained SP.

Diversity in Mohachao Narel, a Sweet Endosperm Coconut (Cocos nucifera L.) Population from Maharashtra, India

2013 ◽  
Vol 36 (3) ◽  
pp. 319-330 ◽  
Author(s):  
K. Samsudeen ◽  
M. K. Rajesh ◽  
D. D. Nagwaker ◽  
Raghavan Reshmi ◽  
P. Ajith Kumar ◽  
...  
Keyword(s):  
Cocos Nucifera ◽  
Cocos Nucifera L

Cocos nucifera L. oil alleviates lead acetate-induced reproductive toxicity in sexually-matured male Wistar rats

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Olugbemi T. Olaniyan ◽  
Olakunle A. Ojewale ◽  
Ayobami Dare ◽  
Olufemi Adebayo ◽  
Joseph E. Enyojo ◽  
...  
Keyword(s):  
Luteinizing Hormone ◽  
Lead Acetate ◽  
Wistar Rats ◽  
Histological Analysis ◽  
Cocos Nucifera ◽  
Reproductive Toxicity ◽  
Positive Control ◽  
Negative Control ◽  
Male Wistar Rats ◽  
Cocos Nucifera L

Abstract Objectives Lead primarily affects male reproductive functions via hormonal imbalance and morphological damage to the testicular tissue with significant alteration in sperm profile and oxidative markers. Though, different studies have reported that Cocos nucifera L. oil has a wide range of biological effects, this study aimed at investigating the effect of Cocos nucifera L. oil on lead acetate-induced reproductive toxicity in male Wistar rats. Methods Twenty (20) sexually matured male Wistar rats (55–65 days) were randomly distributed into four groups (n=5). Group I (negative control)—distilled water orally for 56 days, Group II (positive control)—5 mg/kg bwt lead acetate intraperitoneally (i.p.) for 14 days, Group III—6.7 mL/kg bwt Cocos nucifera L. oil orally for 56 days and Group IV—lead acetate intraperitoneally (i.p.) for 14 days and Cocos nucifera L. oil for orally for 56 days. Rats were sacrificed by diethyl ether, after which the serum, testis and epididymis were collected and used for semen analysis, biochemical and histological analysis. Results The lead acetate significantly increases (p<0.05) testicular and epididymal malondialdehyde (MDA) levels, while a significant reduction (p<0.05) in sperm parameters, organ weight, testosterone and luteinizing hormone was observed when compared with the negative control. The coadministration of Cocos nucifera oil with lead acetate significantly increases (p<0.05) testosterone, luteinizing hormone, sperm parameters and organ weight, with a significant decrease (p<0.05) in MDA levels compared with positive control. Histological analysis showed that lead acetate distorts testicular cytoarchitecture and germ cell integrity while this was normalized in the cotreated group. Conclusions Cocos nucifera oil attenuates the deleterious effects of lead acetate in male Wistar rats, which could be attributed to its polyphenol content and antioxidant properties.

Involvement of monoaminergic systems in anxiolytic and antidepressive activities of the standardized extract of Cocos nucifera L.

2016 ◽  
Vol 71 (1) ◽  
pp. 227-237 ◽  
Author(s):  
Eliane Brito Cortez Lima ◽  
Caren Nádia Soares de Sousa ◽  
Lucas Nascimento Meneses ◽  
Yuri Freitas e Silva Pereira ◽  
Natália Castelo Branco Matos ◽  
...  
Keyword(s):  
Cocos Nucifera ◽  
Cocos Nucifera L
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