[ESP/ENGL] Mariquitas Vs. Cochinilla Algodonosa
Greetings to all. Today I am again with my series dedicated to how to naturally control pests in our crops. Previously I have made several posts where I talk about my plants as well as the pests that have affected them, such is the case of the publications dedicated to my trillolit plant (Combretun indicun), the cottony mealybug (Planoccocus citri) and the attempts to control it (water trap). I have also talked about a natural insecticide I developed to eradicate the white louse (Pinnaspis aspidistraes) and the results I obtained from its application on a lemon tree (Citrus limón). Today I am going to talk specifically about my trillolit plant, which as I have already mentioned, is the first time in its almost 80 years of life, that a plague to the point to stop flowering and restrict its growth, and even lead it almost to its death; but this time I bring you good news, because it is very recovered and all thanks to a super valuable insect that represented its salvation. Here are the links to the posts I have mentioned:
Cochinilla Algodonosa (Planoccocus citri) / Cottony Mealybug (Planoccocus citri) [ESP/ENGL]
Piojo Blanco (Pinnaspis aspidistraes) / White Louse (Pinnaspis aspidistraes) [ESP/ENGL]
Those of you who have read my previous posts know that I had been very concerned, (and in fact, I still am a bit), about the health of my trillolit plant, and it is a kind of natural umbrella, air conditioner and protective shield for my house. It is planted throughout the center of the house, in the interior garden, and provides shade, coolness and prevents insects such as flies from entering in large groups to the different spaces of the house. On the other hand, it provides food for my bee hives, and in times of drought, with few flowers available, the swarms suffer greatly from this shortage, they go hungry and I do not feed them with diluted sugar, everything is natural. This concern increases, because I realized that another melipona hive is growing inside my house, specifically at the entrance of my house, around the door, and they require food, and that this food is within walking distance of their nest; then, the trillolit is the ideal food because it offers a few meters and constantly, many flowers, which are suckers by Apis and meliponas as well, in addition to other pollinators.
The truth is, that since about three weeks ago, I have noticed a progressive improvement in the plant. First, the sticky and sweet-smelling liquid expelled by the mealybugs (it is the excrement after they suck the sap from the plant) stopped falling, as well as the sawdust resulting from the destruction of the trillolith. The second positive sign I found was the decrease of dead leaves, although I did notice an exodus of mealybugs that literally fled in terror to other areas of my home, for example to the living room, climbing furniture and walls, etc.; and that seemed very curious to me, because I counted 200 insects in one day, (obviously I killed them, and those that did not, remained dead for lack of food). Then, I saw that the plant began to green up, to give more branches and new leaves, so much so that for the last three days I have noticed that there are many flower buds waiting to emerge. This last thing made me curious, because the plant had stopped growing and flowering, so I went over to see what was going on.
These photos I am sharing, are from May 20. I had noticed the presence of these ladybugs before, but they are extremely elusive insects, difficult to photograph because they move very fast or take flight, take out wings larger than themselves, which apparently they have hidden and folded under their shell and leave. They are also very tiny, as you can see in these photographs.
Now, these other photos, are from today, May 25 I was barely able to capture an image of these phenomenal insects, which as you see, are not red with black polka dots, but gray with two black polka dots, one on each side of their shell, they are also smaller comparatively to red ladybugs. According to what I investigated, they belong to the genus Delphastus catalinae. Here was this ladybug, on a side of the plant that is still infested with mealybugs. The truth is that these small insects have voraciously preyed on the cottony mealybug plague, they have almost completely annihilated them, which makes me very happy, because in addition to eliminating this pest, it has not been necessary to use any substance that could affect the bees.
Pertenecen a la familia Coccinelidae.
Su tamaño oscila entre 4 y 10 mm.
Pueden ser de diversos colores: Rojas, negras, anaranjadas, rosadas, azules, amarillas, verdes, grises, doradas, marrones.
Algunas se alimentan de plantas, por lo que son consideradas nocivas, mientras otras son carnívoras y funcionan como biocontroladores, ya que se alimentan de otros insectos que sí son unas plagas, (cochinillas, trips, pulgones, mosca blanca, ácaros, etc.)
Son muy eficaces como biocontroladores, tanto en estado larvario como en estado adulto.
En el caso específico de las Delphastus Catalinae, que son las mariquitas que llegaron a casa, pueden comer hasta 10.000 huevos de moscas blancas. En el caso de la cochinilla algodonosa no sé cuántas comerán, pero todas las veces las conseguí adheridas en la parte inferior de la cochinilla, supongo que comiéndosela viva.
Debido a su gran voracidad, pueden llegar a ser caníbales, aunque si no consiguen su alimento migrarán a otro lado.
Son de hábitos diurnos, pues pasan todo el día buscando comida. En la noche duermen.
I wanted to talk about some general characteristics of ladybugs, information that I could find in specialized bibliography, which I quote at the end of this post. I want to emphasize that although I took information from these sources, I have NOT copied verbatim, so let's learn more about ladybugs:
- They belong to the family Coccinelidae.
- Its size ranges between 4 and 10 mm.
- They can be of different colors: Red, black, orange, pink, blue, yellow, green, gray, gold, brown.
- Some feed on plants, so they are considered harmful, while others are carnivorous and function as biocontrollers, since they feed on other insects that are pests (mealybugs, thrips, aphids, whiteflies, mites, etc. )
- They are very effective as biocontrollers, both in the larval stage and in the adult stage.
- In the specific case of the Delphastus Catalinae, which are the ladybugs that are in my home, they can eat up to 10,000 whitefly eggs. In the case of the cottony mealybug I don't know how many they will eat, but every time I see, they are attached to the bottom of the mealybug, I guess eating it alive.
- Due to their great voracity, they can become cannibals, although if they do not get their food they will migrate elsewhere.
- They are diurnal habits, because they spend all day looking for food. At night they sleep.
CONCLUSION: The cottony mealybug is a very resistant pest, difficult to treat due to its high rate of reproduction, the ineffectiveness of many of the natural insecticides, and the virulence of its attack. The two ways that I have been able to verify are effective to eliminate this pest, is by: First, by eliminating 100% of the foliage of the affected plant, thus removing any vestige of this insect. Second, with the natural or introduced presence of biocontrollers, as is the case of ladybugs, in any of their types, because being carnivorous predators with a great appetite, they will quickly eliminate these harmful insects (cotton mealybug). I understand that in some specialized stores they sell these insects, ready to be released on diseased crops.
Todas las fotos de este post son de mi autoría y fueron tomadas con mi teléfono Xiomi REDMI 8 A // These photos are my own, and were taken with a Xiomi REDMI 8 A phone
Los divisores son cortesía de @eve66 quien comparte bellos diseños que embellecen el maquetado de nuestras publicaciones. // The dividers used are courtesy of @eve66 who shares beautiful designs that embellish the layout of our post.
En caso de que se requiera utilizar el contenido o las imágenes de este post y de mis otras publicaciones, agradecería que se hiciera referencia a mi autoría (Fabiola Martínez) y se citara el enlace correspondiente. Gracias. // In case it is required to use the content or images of this post and of my other publications, I would appreciate if you could refer to my authorship (Fabiola Martínez) and cite the corresponding link. Thanks.
That's fantastic news that they're keeping things under control now! It's so good when the eco-system balances itself out. This is the reason I don't like to use any form of sprayed control on pests, even if it's natural, because even natural ones don't discriminate and can harm the predator bugs.
@tipu curate
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You are absolutely right, even bioinsecticides do not discriminate, that is why I also stopped using them, because of their ineffectiveness against the cottony bug, and the possibility of killing pollinators. I see that these ladybugs and similar ones can be bought in the market to control pests. Where I live I can't find them, but perhaps in Australia there are some for sale. Thanks for stopping by to read and support my post. Regards.
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Hola Sirena, me contenta que tu planta haya mejorado. Definitivamente la naturaleza es sorprendente, cada dia uno va aprendiendo y descubriendo cosas interesantes como el caso de esas mariquitas biocontroladoras. Que tu jardin se siga embelleciendo. Abrazos!