Control of Root-Knot Nematode () in Tomato () Crop Using Siam Weed () Compost Manure

Stephen A. Abolusoro; Aruna Olasekan Adekiya; Charity Aremu; Sunday Ige; Nkechi B. Izuogu; Patricial F. Abolusoro; Avwerosuo Erere; Samuel Obaniyi

Journal & Issue Details

Journal of Horticultural Research

Journal Details

Format: Journal
eISSN: 2353-3978
First Published: 30 Jul 2013
Publication timeframe: 2 times per year
Languages: English

Tomato (Solanum lycopersicum L.) is an important vegetable crop in the world. It is also cultivated throughout tropical Africa (Lester & Seck 2002). Tomatoes produced in the study area have grossly inadequate growing conditions due to biotic factors adverse to the crop and they do not achieve potential yield. In Nigeria, tomato average yield is 10 t·ha⁻¹ (Dantata et al. 2011), which is lower than the world average of 22 t·ha⁻¹ (Ojeniyi et al. 2007). Yield losses of heavily infected tomato crops can reach up to 80% (Bourne et al. 2004; Kaşkavalcı 2007). Nematodes can make plants more susceptible to damage by plant pathogenic fungi, bacteria and viruses, which increases the losses of the yield (Rivera & Abally 2008). Feeding activities of the root-knot nematodes (RKN) in the root tissue result in the formation of massive galls of different sizes on root system. Severally affected plants often wilt readily and may also exhibit nutrient deficiency symptoms because galled roots have limited capacity to absorb and translocate nutrient and water to other plant part (Coyne et al. 2007). An attack of nematodes on crop usually brings about yield reduction. Nematode contributes substantially to hunger all over the world especially in the tropics. They rob man of his fruit of labor (Egunjobi 2014). The root-knot nematode are the most notorious phytophagous nematode (Meloidogyne spp.), since they infest majority of the most important economic plant species in the world. This genus contains over 80 species (Karseen 2002) and has been reported to cause an estimated $100 billion loss annually worldwide (Oka 2010). It is therefore expedient to manage RKN so as to reduce the yield losses in tomato. Management of RKN with synthetic nematicides can be very effective. Adegbite and Agbaje (2007) and Dubey and Trivedi (2011) reported a significant reduction in the incidence of Meloidogyne incognita (Kofoid & White 1919) in three hybrid yam cultivars after an application of carbofuran 3G at 100 kg·ha⁻¹. However, scarcity, high cost, environmental safety and global restriction on the importation of chemical nematicides have encouraged scientists to search for alternative control solutions against economically important nematodes (IFCS 2004). Today, the world is becoming more aware of the environmental hazard posed by all synthetic pesticides. Even in advanced countries, where this synthetics are produced and farmers have sufficient skill for application, they are now being replaced with other, more environmentally friendly methods of pest and disease control to minimized environmental pollution and health hazard (Olabiyi 2005). Siam weed is among the most common plants growing as weed in the tropics. Several researchers have consistently reported that some weeds are effective in suppressing nematode population when used as plant extract, organic amendment and recently as cover crop (Adekunle & Fawole 2003; Adekunle 2011). Organic manure, when incorporated into the soil in large amount, reduces of soil inhabiting pests and pathogens (Abolusoro et al. 2013; 2014). The use of compost manure in crop production when fully developed and integrated can enhance safe food production, minimize environmental hazards and increase acceptability of our products in the European markets.

The objective of this paper is therefore to evaluate the efficacy of Chromolaena odorata compost on root-knot nematode (M. incognita) in tomato crop.

MATERIALS AND METHODS

Preparation of compost material

Siam weed (C. odorata) compost was prepared at Landmark University Omu-Aran, Kwara State at the Teaching and Research Farm. Freshly harvested Siam weed was shredded into smaller pieces. 100 kg of chopped leaves was mixed thoroughly with 15 kg of poultry manure gotten from deep litter poultry house and wrapped with plastic, properly covered for a period of six month prior to the beginning of the research work – windrone method (Olabiyi et al. 2013). The mixture was properly turned at an interval of one month with garden spade. The fully decomposed materials (compost) were spread, air dried and ground into powder form (Olabiyi et al. 2013).

Field experiment

A field trail was conducted in a plot naturally infested with M. incognita in the year 2017 and repeated at the same period in the 2018 at the site located in the experimental field of 267.3 m² (15.5 × 22.8 m). This piece of land was divided into 4 blocks of a size of 13.5 m². Each block was divided into 5 plots. The experiment was a randomized complete block design comprising of 5 treatments (control, 0.5, 1.0, 2.0 t·ha⁻¹ of compost and carbofuran 3.0 kg·ha⁻¹), replicated 4 times. The organic amendments and carbofuran were added to the plots one week before transplanting.

Tomato seedlings ‘Roma VF’ were transplanted four weeks after sowing in the nursery to the field at a spacing of 0.4 m on the ridges. The plants were watered by sprinkler irrigation and manually weeding was carried out fortnightly in each year of the experiment. The trial for each year was terminated one hundred and fifty days after planting.

Soil and nematode

Soil samples for nematode analysis were collected separately from every experimental plot before planting and after harvest. Soil was collected with soil auger very close to the base of the tomato plant and mixed thoroughly. Nematodes were extracted from 200 ml sub-samples using the method described by Whitehead and Hemming (1965). The species of the RKN was identified by perineal pattern of structure of females using the method described by Eisenback et al. (1981).

At the end of the study, the tomato plants were carefully dug up and assessed for galling, according to the method described by Taylor and Sasser (1978): 0 = no galls; 1 = 1–2 galls; 2 = 3–10 galls; 3 = 11–30 galls; 4 = 31–100 galls; 5 = more than 100 galls.

At planting, the soil nematode population was between 2105–2111 second stage juvenile (J2) in 200 ml soil in 2017 and 2092–2101 J2 in 200 ml soil in 2018.

Data analysis

All numerical data collected were subjected to analysis of variance. The significance of differences between means was evaluated using Duncan's Multiple Range Test at 5% level of probability.

RESULTS

Growth of tomato in the soil infested with root-knot nematode

Plants grown on plots with higher quantity of Siam compost or carbofuran recorded significant differences in the height and leaf number compared with lower dose of compost treatment and untreated control. In both years (2017 and 2018), there were no significant differences between carbofuran and Siam compost at 2 t·ha⁻¹ for plant height, whereas the lowest compost dose did not differ from the control. Number of leaves per plant was significantly lowest in control and in the treatments grown in the highest compost doses and in carbofuran treatment (Table 1).

Table 1

Effect of Siam compost (t·ha⁻¹) and carbofuran (3 kg·ha⁻¹) on the growth of tomato in the soil infested with root-knot nematodes

	2017		2018

Treatment	Average plant height (cm)	Average leaf number per plant	Average plant height (cm)	Average leaf number per plant
Control	66.9^c ± 0.05	27.1^e ± 0.06	68.3^b ± 0.10	28.81^e ± 0.11
0.5	66.9^c ± 0.02	40.45^d ± 0.05	68.5^b ± 0.10	40.35^d ± 0.11
1.0	73.6^b ± 0.01	42.95^c ± 0.06	75.8^a ± 0.21	42.23^c ± 0.12
2.0	75.4^a ± 0.01	44.86^b ± 0.06	75.8^a ± 0.22	43.93^b ± 0.11
Carbofuran	75.7^a ± 0.02	45.00^a ± 0.06	76.1^a ± 0.21	45.97^a ± 0.12

p value	0.000	0.000	0.000	0.000

Each value is a mean ±SE of the four replicates. Means followed by the same letter are not significantly different at p < 0.05 according DMRT.

Flowering of tomato grown in the soil infested with root-knot nematode

There were significant differences in the number of days to 50% flowering and number of flowers between different levels of compost and carbofuran application. Plants that received the highest dosage of compost (2 t·ha⁻¹) or carbofuran bloomed in shorter time and had more flowers compared to the lower dosage (1.0 and 0.5 t·ha⁻¹) and the control. This observation was consistent for the two years of experimentation (Table 2).

Table 2

Effect of Siam compost (t·ha⁻¹) and carbofuran (3 kg·ha⁻¹) on the flowering of tomato growing in the soil infested with root-knot nematode

	2017		2018

Treatment	Mean number of days to 50% flowering	Average number of flowers per plant	Mean number of days 50% flowering	Average number of flowers per plant
Control	66.70^a ± 1.31	7.27^e ± 1.11	67.50^a ± 1.30	9.52^e ± 0.11
0.5	62.58^b ± 1.20	20.23^d ± 1.51	63.10^b ± 1.41	21.35^d ± 1.25
1.0	60.10^c ± 1.31	28.28^c ± 1.20	60.38^c ± 1.32	28.60^c ± 1.34
2.0	56.23^d ± 1.24	40.76^b ± 1.21	55.00^d ± 1.33	36.37^b ±1.61
carbofuran	53.10^e ± 1.21	46.20^a ± 1.56	57.20^e ± 1.10	45.33^a ± 1.43

p value	0.000	0.000	0.000	0.000

Note: See Table 1

Yield components of tomato grown in the soil infested with root-knot nematode

The fruit number per plant was three times lower in control then at the highest dose of Siam compost and carbofuran, whereas fruit yield per plant increased at the same pattern but the difference was five times (Table 3).

Table 3

Effect of Siam compost (t·ha⁻¹) and carbofuran (3 kg·ha⁻¹) on yield components of tomato growing in the soil infested with root-knot nematode

	2017		2018

Treatment	Average number of fruits per plant	Average fruit yield per plant (g)	Average number of fruits per plant	Average fruit yield per plant (g)
Control	6.71^e ± 1.20	98.1^e ± 2.11	6.94^e ± 1.12	102.1^e ± 2.45
0.5	15.74^d ± 1.41	369.7^d ± 2.40	16.01^d ± 1.20	368.0^d ± 2.34
1.0	17.22^c ± 1.32	407.7^c ± 2.41	17.30^c ± 1.23	400.3^c ± 2.21
2.0	19.96^b ± 1.31	485.3^b ± 2.36	19.40^b ± 1.11	479.7^b ± 2.12
carbofuran	21.47^a ± 1.42	502.3^a ± 2.54	20.90^a ± 1.13	500.2^a ± 2.11

p value	0.000	0.000	0.000	0.000

Note: See Table 1

Population of root-knot nematode in the tomato roots and in the soil

The highest population of root-knot nematode was recorded in soil and plant roots grown without any protection (Table 4). Number of nematodes in the roots was three times higher in control than in carbofuran treatment in 2017 and five times higher in 2018. These numbers decreased significantly with increasing Siam compost doses. The soil nematode decreased in the same pattern and differences between control and carbofuran treatment were doubled. Root gall indices were twice higher in the control than in carbofuran treatment. In all cases, the highest dose of Siam compost was most effective but significantly lower than in the carbofuran treatment.

Table 4

Effect of Siam compost (t·ha⁻¹) and carbofuran (3 kg·ha⁻¹) on the root and soil population of nematode as well as gall index of tomato growing in the soil infested with root-knot nematode

	2017			2018

Treatment	Number of nematodes in 5 g root	Soil nematode population in 200 ml soil	Root gall index	Number of nematodes in 5 g root	Soil nematode population in 200 ml soil	Root gall index
Control	15.90^a ± 0.12	870.40^a ± 3.20	4.15^a ± 0.01	27.73^a ±0.41	865.48^a ± 2.65	4.35^a ± 0.01
0.5	12.87^b ± 0.22	648.46^b ± 3.12	2.85b ±0.01	14.10^b ± 0.35	649.82^b ± 2.14	2.83^b ± 0.02
1.0	12.23^c ± 0.20	553.87^c ± 3.10	2.77^c ± 0.02	12.60^c ± 0.31	544.28^c ± 2.11	2.67^c ± 0.02
2.0	7.40^d ± 0.13	473.50^d ± 2.88	2.37^d ± 0.01	7.773^d ± 0.21	493.20^d ± 2.12	2.34^d ± 0.02
carbofuran	5.40^e ± 0.13	421.60^e ± 2.56	1.90^e ± 0.01	5.66^e ± 0.21	454.60^e ± 2.01	1.80^e ± 0.01

p value	0.000	0.000	0.000	0.000	0.000	0.000

Note: See Table 1

DISCUSSION

Addition of Siam compost or carbofuran to nematode infested soil reduced the population density of M. incognita and increased the growth and fruit yield of tomato. The nature of plant protection against nematodes by Siam weed compost can be connected with the ability to stimulate multiplication of micro-organisms like fungi and bacteria, some of which are antagonists or parasites of nematodes causing the reduction of nematodes population, thereby promoting growth and development of tomato (Ali et al. 2017). Timper (2014) reported that organic manure, including compost amended to the soil, improves the performance of nematode infested plant due to direct stimulation of predators and parasites of nematodes leading to reduction in soil pathogens and consequent increase in growth and yield. Similar results were obtained by Chindo and Khan (1990) who reported significant reduction of nematode population on S. lycopersicum with increase in growth, yield and reduced gall index of root-knot nematode due to treatment with organic manure compared to the untreated control.

Another reason of better growth of plants in soil with compost addition might be a general improvement in the soil fertility as well as the nemato-toxic substances released by the compost manure on decomposition (Riegel & Noe 2000; Oka 2010). These toxins may have reduced the number of juvenile forms of M. incognita by killing them. Organic manure including compost has been shown to be rich in nitrogen and phenolic compounds (Agyarko et al. 2006; Renčo & Kováčik 2012). On decomposition, nitrogen is converted to ammonia (Lazarovits et al. 2001; Oka 2010), which can be toxic to several soil nematode species (Lazarovits et al. 2001). Phenolic compounds are also reported to be lethal to plant parasitic nematodes (Nwanguma & Fawole 2004).

In our experiment, the heavily galled roots and reduced yield of tomato in the control treatment indicates that tomato ‘Roma VF’ used in the study is susceptible to M. incognita. The result of this study proved that the application of Siam weed compost can be successfully used for controlling root-knot nematode as replacement for human toxic, environmentally unfriendly, costly and not recommended or prohibited synthetic chemicals for managing root-knot nematode affecting our economic crops.

CONCLUSION

The result from this research showed that Siam weed compost has nematicidal properties, especially when applied at the dose of 2 t·ha⁻¹; hence, can be used in the management of plant root-knot nematodes. To confirm the presented research, we are still conducting experiments on the possibility of using higher doses of Siam compost, changes in the reaction of plants and nematodes depending on the formulation of compost to select the dose most effective and economically justified.

Figures & Tables

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on yield components of tomato growing in the soil infested with root-knot nematode

	2017		2018

Treatment	Average number of fruits per plant	Average fruit yield per plant (g)	Average number of fruits per plant	Average fruit yield per plant (g)
Control	6.71^e ± 1.20	98.1^e ± 2.11	6.94^e ± 1.12	102.1^e ± 2.45
0.5	15.74^d ± 1.41	369.7^d ± 2.40	16.01^d ± 1.20	368.0^d ± 2.34
1.0	17.22^c ± 1.32	407.7^c ± 2.41	17.30^c ± 1.23	400.3^c ± 2.21
2.0	19.96^b ± 1.31	485.3^b ± 2.36	19.40^b ± 1.11	479.7^b ± 2.12
carbofuran	21.47^a ± 1.42	502.3^a ± 2.54	20.90^a ± 1.13	500.2^a ± 2.11

p value	0.000	0.000	0.000	0.000

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on the growth of tomato in the soil infested with root-knot nematodes

	2017		2018

Treatment	Average plant height (cm)	Average leaf number per plant	Average plant height (cm)	Average leaf number per plant
Control	66.9^c ± 0.05	27.1^e ± 0.06	68.3^b ± 0.10	28.81^e ± 0.11
0.5	66.9^c ± 0.02	40.45^d ± 0.05	68.5^b ± 0.10	40.35^d ± 0.11
1.0	73.6^b ± 0.01	42.95^c ± 0.06	75.8^a ± 0.21	42.23^c ± 0.12
2.0	75.4^a ± 0.01	44.86^b ± 0.06	75.8^a ± 0.22	43.93^b ± 0.11
Carbofuran	75.7^a ± 0.02	45.00^a ± 0.06	76.1^a ± 0.21	45.97^a ± 0.12

p value	0.000	0.000	0.000	0.000

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on the root and soil population of nematode as well as gall index of tomato growing in the soil infested with root-knot nematode

	2017			2018

Treatment	Number of nematodes in 5 g root	Soil nematode population in 200 ml soil	Root gall index	Number of nematodes in 5 g root	Soil nematode population in 200 ml soil	Root gall index
Control	15.90^a ± 0.12	870.40^a ± 3.20	4.15^a ± 0.01	27.73^a ±0.41	865.48^a ± 2.65	4.35^a ± 0.01
0.5	12.87^b ± 0.22	648.46^b ± 3.12	2.85b ±0.01	14.10^b ± 0.35	649.82^b ± 2.14	2.83^b ± 0.02
1.0	12.23^c ± 0.20	553.87^c ± 3.10	2.77^c ± 0.02	12.60^c ± 0.31	544.28^c ± 2.11	2.67^c ± 0.02
2.0	7.40^d ± 0.13	473.50^d ± 2.88	2.37^d ± 0.01	7.773^d ± 0.21	493.20^d ± 2.12	2.34^d ± 0.02
carbofuran	5.40^e ± 0.13	421.60^e ± 2.56	1.90^e ± 0.01	5.66^e ± 0.21	454.60^e ± 2.01	1.80^e ± 0.01

p value	0.000	0.000	0.000	0.000	0.000	0.000

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on the flowering of tomato growing in the soil infested with root-knot nematode

	2017		2018

Treatment	Mean number of days to 50% flowering	Average number of flowers per plant	Mean number of days 50% flowering	Average number of flowers per plant
Control	66.70^a ± 1.31	7.27^e ± 1.11	67.50^a ± 1.30	9.52^e ± 0.11
0.5	62.58^b ± 1.20	20.23^d ± 1.51	63.10^b ± 1.41	21.35^d ± 1.25
1.0	60.10^c ± 1.31	28.28^c ± 1.20	60.38^c ± 1.32	28.60^c ± 1.34
2.0	56.23^d ± 1.24	40.76^b ± 1.21	55.00^d ± 1.33	36.37^b ±1.61
carbofuran	53.10^e ± 1.21	46.20^a ± 1.56	57.20^e ± 1.10	45.33^a ± 1.43

p value	0.000	0.000	0.000	0.000

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Journal of Horticultural Research

Control of Root-Knot Nematode (Meloidogyne incognita) in Tomato (Solanum lycopersicum) Crop Using Siam Weed (Chromolaena odorata) Compost Manure

Stephen A. Abolusoro,
Stephen A. Abolusoro,
Aruna Olasekan Adekiya,
Aruna Olasekan Adekiya,
Charity Aremu,
Charity Aremu,
Sunday Ige,
Sunday Ige,
Nkechi B. Izuogu,
Nkechi B. Izuogu,
Patricial F. Abolusoro,
Patricial F. Abolusoro,
Avwerosuo Erere and
Avwerosuo Erere and
Samuel Obaniyi
Samuel Obaniyi

Published Online: 30 Jun 2020

Volume & Issue: Volume 28 (2020) - Issue 1 (June 2020)

Page range: 87 - 92

Received: 01 Dec 2019

Accepted: 01 Apr 2020

Journal & Issue Details

Journal of Horticultural Research

PDF Preview

Article

Figures & Tables

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on yield components of tomato growing in the soil infested with root-knot nematode

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on the growth of tomato in the soil infested with root-knot nematodes

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on the root and soil population of nematode as well as gall index of tomato growing in the soil infested with root-knot nematode

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on the flowering of tomato growing in the soil infested with root-knot nematode

References

Recent Articles

Journal of Horticultural Research

Control of Root-Knot Nematode (Meloidogyne incognita) in Tomato (Solanum lycopersicum) Crop Using Siam Weed (Chromolaena odorata) Compost Manure

Stephen A. Abolusoro,Stephen A. Abolusoro,Aruna Olasekan Adekiya,Aruna Olasekan Adekiya,Charity Aremu,Charity Aremu,Sunday Ige,Sunday Ige,Nkechi B. Izuogu,Nkechi B. Izuogu,Patricial F. Abolusoro,Patricial F. Abolusoro,Avwerosuo Erere andAvwerosuo Erere andSamuel ObaniyiSamuel Obaniyi

Published Online: 30 Jun 2020

Volume & Issue: Volume 28 (2020) - Issue 1 (June 2020)

Page range: 87 - 92

Received: 01 Dec 2019

Accepted: 01 Apr 2020

Journal & Issue Details

Journal of Horticultural Research

PDF Preview

Article

Figures & Tables

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on yield components of tomato growing in the soil infested with root-knot nematode

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on the growth of tomato in the soil infested with root-knot nematodes

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on the root and soil population of nematode as well as gall index of tomato growing in the soil infested with root-knot nematode

Effect of Siam compost (t·ha−1) and carbofuran (3 kg·ha−1) on the flowering of tomato growing in the soil infested with root-knot nematode

References

Recent Articles

Stephen A. Abolusoro,
Stephen A. Abolusoro,
Aruna Olasekan Adekiya,
Aruna Olasekan Adekiya,
Charity Aremu,
Charity Aremu,
Sunday Ige,
Sunday Ige,
Nkechi B. Izuogu,
Nkechi B. Izuogu,
Patricial F. Abolusoro,
Patricial F. Abolusoro,
Avwerosuo Erere and
Avwerosuo Erere and
Samuel Obaniyi
Samuel Obaniyi