
This scientic publication in digital format is a continuation of the Printed Review: Legal Deposit pp 196802ZU42, ISSN 0378-7818.
Vera et al. Rev. Fac. Agron. (LUZ). 2025, 42(1): e254201
3-4 |
masl and rainfall is 1,700 mm.year
-1 
 (Corporación para el Desarrollo 
de la Región Zuliana [CORPOZULIA], 2022).
Experimental unit
The experimental unit was the bunch of a Harton plantain (Musa 
AAB) plant.
Experimental design
The experimental design was totally randomized with 5 treatments 
and 20 replications for a total of 100 Harton plantain plants, 24 
months old, with a planting distance of 3 m between rows x 2 m 
between plants, for a total of 1,667 plants.ha
-1
. 
Treatments
T1: control plant, bunch without product application; T2: bunch 
sprayed with garlic bulb extract; T3: bunch sprayed with hot pepper 
fruit extract; T4: bunch sprayed with lemongrass leaf extract; T5: 
bunch sprayed with eucalyptus leaf extract.
Variable
Plantain bunch fruit without damage by insect attack. The fruits 
of each bunch were counted, then it was veried how many showed 
damage, identifying the causal agent, and then the percentage was 
obtained.
Extracts
1 kg of garlic bulbs; 1 kg of hot bell pepper fruits; 4 kg of lemongrass 
leaves  and  4  kg  of  eucalyptus  leaves,  liqueed  separately  (Black 
Decker blender, model BLBD21OPR, United States of America), 
washed with soap and water after each use, with concentrations of 
each aqueous extract of 100 % in 5 liters of water, with a rest of 72 
hours for all extracts (Nava, 2019).
Management
A tour of the plantation was made, locating the plants that had 
one week old bunches, identifying them with colored tape according 
to the treatment. The bunches were then sprayed with plant extracts 
using  a  100  %  water-organ plant  mixture,  so  that  the  eect  would 
act  as  a  repellent  against  the  dierent  insects  that  approached  the 
bunches. It was evidenced in the productive unit after 20 visits in 
periods  with  and  without  rain,  that  dierent  insects  approach  the 
plantain bunch producing damages to it (during all the months the 
insects were present). The applications were carried out weekly with 
a back sprayer with a capacity of 18 L, Carpi brand, model carpi18, 
Brazil, for four weeks, then the epicarp of the plantain fruit thickens 
and the insects do not produce damage.
The practices of desuckering, defoliation and sanitary defoliation 
were carried out. Undergrowth weed management was carried out 
weekly, manually with a machete. Eleven weeks after the treatments 
were identied, all the marked bunches were harvested. A total count 
of the fruit was made, checking for damage. The incidence of insects 
was estimated by counting the lesions produced by each genus in each 
bunch harvested.
Data processing and analysis techniques 
The results were processed through the Statistical Analisys 
System (SAS®) statistical package (SAS, 2014); an analysis of 
variance (ANOVA) was performed on the variables under study to 
demonstrate the eect of the application of the dierent treatments, 
and if signicant, Tukey’s mean comparison test was performed.
Results and discussion
There  was  a  signicant  dierence  (p<0.05)  for  the  variable 
fruit  without  damage  by  insect  attack,  since  there  was  a  dierence 
between the means of T2 (94 %) and T3 (96 %) with respect to the 
other treatments with values for T1; T4 and T5 of: 2 %; 28 % and 31 
% respectively (table 1). Therefore, the use of garlic bulbs and hot 
pepper fruits as aqueous plant extracts at a concentration of 100 % is 
recommended, being viable for optimal management of the bunches 
in the plantation.
Table 1. Percentage of fruit without insect damage in the plantain 
bunch, Sucre municipality, Zulia state.
Treatment Fruit average
Fruits  without      
damage (%)
Coecient of 
variation
Without product 0,6 c 2 2,38
Garlic bulbs 28,2 a 94 0,05
Hot pepper fruits  28,2 a 96 0,06
Lemongrass leaves  8,4 b 28 1,06
Eucalyptus leaves 9,3 b 31 1,00
Dierent  letters  indicate  signicant  dierences  obtained  by  Tukey’s  mean 
comparison test (p<0.05).
With the use of aqueous extracts obtained from garlic bulbs and 
hot pepper fruits as repellents, a high percentage of clean fruits can 
be obtained, without using agrochemicals, promoting alternatives that 
are adapted to the production units.
Barrera  et al.  (2018),  evaluated  the  eect  of  bags  impregnated 
with garlic on the incidence and severity of lesions caused by Colaspis 
spp. In that work the aqueous extract of garlic at a concentration of 
100 %, was the one that caused the greatest repellency of insects and 
a decrease in fruit damage of 98 %.
In this context, Claros et al. (2019) indicated that biodiversity 
is threatened by the spread of insects, so there is a need to develop 
environmentally friendly management strategies. Villasmil et al. 
(2022) emphasized that organic production is a system that seeks to 
improve environmental conditions through ecological management. 
This assertion is conrmed by the results of this research.
Centanaro and Nava (2021) stated in their publication on 
musaceae that 58.34 % of producers made an uncontrollable use 
of  agrochemicals,  reecting  the  lack  of  monitoring,  control  in  the 
application of products and high possibility of intoxication, with a 
lack of knowledge of producers of the new trends in integrated pest 
management and cultural controls. With the results of this research, 
the alternative of using aqueous plant extracts at 100 % concentration 
is now presented, being viable in an ecological management.
The insects collected during this research and which caused the 
damage observed in the plantain bunches were Colaspis spp. (31 
%) and Trigonas spp. (69 %); the greatest amount of damage was 
observed on  the edges of the epicarp, with lesions  that aected the 
quality of the bunch.
Plantain producers should identify the insects that visit their 
plantations, knowing the damage they can cause, with a permanent 
review in the search for minimizing the environmental impact. In this 
sense, based on these results, the quality and appearance of the fruit 
can be maintained in the marketing process.
Therefore, according to what has been presented, it is possible 
to work with new trends in integrated insect management, with the 
aim of reducing the application of chemical products in plantain 
cultivation with production units that are more sustainable.
Conclusions
With the use of plant extracts, it was possible to obtain a low 
percentage of damage caused by insects in the plantain bunch, 
maintaining the quality of the bunch.