The Bumblebee Ecological Protection and Preservation State

Bumblebees are Among
Some Parasitic Specie

Source
Wikimedia Commons

Unfortunately there are some "bumblebee" between parasite species and therefore are not productive in pollination processes for farmers.

So it is not uncommon for employers of agricultural and agribusiness, large- cale use of pesticides in order to reduce or extinguish the population mass of these parasitic species of bumblebees, however and yet so far but with a purpose to protect their crops, often drastically alter the populations of bumblebees parasites and even pollinators, gaping a remarkable ecological imbalance then began to decline and even certain plant species disappear due to indiscriminate use of pesticides. 

Bumblebee Asocciation - The Bumblebee Ecological Protection and Preservation State

That is why in the UK the association was founded: "Bumblebee Conservation Trust", whose main objective is to protect and encourage the conservation of all species of bumblebees especially in those that are in danger of extinction. However, despite the joint efforts, many species of bumblebees have disappeared, hence a constant concern for the species occurring in danger of extinction because its destruction would result in a major ecological imbalance that would not only affect but also Hymenoptera other floral and even food species. 

It should be noted and mentioned that due to the massive use of some pesticides have disappeared not only some species of bumblebees in the U.K., but also in America.

In my personal opinion I think you should study further the use or implementation of methods of natural pest control so as not to create ecological imbalances as marked and/or permanent in the short, medium and long term would have serious and undesirable consequences not only for different species of bumblebees but for all wildlife and captive.

Some Bumblebees Are Parasitic Species

Unfortunately, there are some parasitic "bumblebee" species that are not productive in pollination processes for farmers.

So, it's not uncommon for agricultural employers and agribusinesses to use large-scale pesticides to reduce or eliminate the population of these parasitic bumblebee species. However, while intending to protect their crops, they often drastically alter the populations of both parasitic and pollinating bumblebees. This creates a remarkable ecological imbalance, and certain plant species begin to decline or even disappear due to the indiscriminate use of pesticides.

The Cuckoo Bumblebee: A Master of Deception

These parasitic species are commonly known as cuckoo bumblebees (Bombus subgenus Psithyrus). Unlike true bumblebees, they lack a worker caste and cannot collect pollen. Their life strategy is a fascinating act of deception. A parasitic queen emerges from winter and locates a host colony—a nest of another bumblebee species. She then infiltrates the nest, kills or subdues the host queen, and uses the host colony's existing worker bees to raise her own parasitic offspring.

Because they don't forage for pollen, they are not effective pollinators. Farmers often see them as a nuisance, but their removal through pesticides has far-reaching consequences that go beyond a single pest species.
The Pesticide Problem and Ecological Imbalance
The issue with many modern pesticides is that they are broad-spectrum, meaning they kill or harm a wide range of insects, not just the target pest. The widespread use of chemicals like neonicotinoids has been linked to severe declines in honeybee and bumblebee populations across the globe.

These chemicals can cause non-target effects, such as impairing a bee's ability to navigate, forage, and even reproduce. A pollinator might not die immediately from a low dose, but it becomes disoriented and unable to return to its nest, contributing to a gradual colony collapse.

This indiscriminate use of pesticides disrupts a delicate ecological balance. By trying to eliminate parasitic bees, farmers also wipe out the very pollinators their crops depend on, leading to a long-term decline in yield and biodiversity.

Conservation and Preservation: A Call to Action

That's why organizations like the Bumblebee Conservation Trust in the UK were founded. Their main goal is to protect and encourage the conservation of all bumblebee species, especially those in danger of extinction. It should be noted that due to the massive use of some pesticides, bumblebee species have disappeared not only in the U.K. but also in America.

In my personal opinion, we should study and implement natural pest control methods to avoid creating such marked and permanent ecological imbalances. Alternatives like Integrated Pest Management (IPM), which uses a combination of biological controls, habitat management, and minimal chemical intervention, offer a more sustainable way to protect crops without destroying the vital pollinators we all depend on. The destruction of these species would have severe and undesirable consequences, not only for other hymenopteran species but also for our food supply.