how can we grow our food with fewer
how can we grow our food with fewer harmful chemicals more and more farmers
harmful chemicals more and more farmers
harmful chemicals more and more farmers are managing pests with natural
are managing pests with natural
are managing pests with natural combatants called bio pesticides these
combatants called bio pesticides these
combatants called bio pesticides these do the job of regular pesticides but
do the job of regular pesticides but
do the job of regular pesticides but they come from natural sources like
they come from natural sources like
they come from natural sources like insects plants and bacteria of all bio
insects plants and bacteria of all bio
insects plants and bacteria of all bio pesticide sales in 2011 bio chemicals
pesticide sales in 2011 bio chemicals
pesticide sales in 2011 bio chemicals such as scented plant extracts had the
such as scented plant extracts had the
such as scented plant extracts had the largest share sales also included
largest share sales also included
largest share sales also included microbials such as bacteria and viruses
microbials such as bacteria and viruses
microbials such as bacteria and viruses more than 300 species of insects and
more than 300 species of insects and
more than 300 species of insects and other combatants like pheromones and
other combatants like pheromones and
other combatants like pheromones and roundworms these products are a small
roundworms these products are a small
roundworms these products are a small part of the total pesticide market but
part of the total pesticide market but
part of the total pesticide market but their share is growing as consumers
their share is growing as consumers
their share is growing as consumers demand more chemical free food sales of
demand more chemical free food sales of
demand more chemical free food sales of biopesticides are lowest in Africa but
biopesticides are lowest in Africa but
biopesticides are lowest in Africa but in the 1980s one of them had a huge
in the 1980s one of them had a huge
in the 1980s one of them had a huge impact on the region’s cassava crop in
impact on the region’s cassava crop in
impact on the region’s cassava crop in 1973 the cassava mealy bug was
1973 the cassava mealy bug was
1973 the cassava mealy bug was accidentally brought to Africa from
accidentally brought to Africa from
accidentally brought to Africa from South America and within a few years it
South America and within a few years it
South America and within a few years it decimated the continents cassava crops a
decimated the continents cassava crops a
decimated the continents cassava crops a staple food for millions of people
staple food for millions of people
staple food for millions of people scientists looked to South America for a
scientists looked to South America for a
scientists looked to South America for a natural enemy of the mealy bug
natural enemy of the mealy bug
natural enemy of the mealy bug they found a special parasitoid wasp and
they found a special parasitoid wasp and
they found a special parasitoid wasp and introduced it in Africa but how could a
introduced it in Africa but how could a
introduced it in Africa but how could a wasp save the day while a mealy bug is
wasp save the day while a mealy bug is
wasp save the day while a mealy bug is sucking sap from cassava leaves a female
sucking sap from cassava leaves a female
sucking sap from cassava leaves a female wasp swoops in and lays its eggs in the
wasp swoops in and lays its eggs in the
wasp swoops in and lays its eggs in the melee buck when the eggs hatch the wasp
melee buck when the eggs hatch the wasp
melee buck when the eggs hatch the wasp larvae eat the mealy bug from the inside
larvae eat the mealy bug from the inside
larvae eat the mealy bug from the inside out killing it the new wasp soon mature
out killing it the new wasp soon mature
out killing it the new wasp soon mature and the process starts over again the
and the process starts over again the
and the process starts over again the infestation took a few years to fully
infestation took a few years to fully
infestation took a few years to fully manage but the economic benefits were
manage but the economic benefits were
manage but the economic benefits were huge for every dollar spent on mealy bug
huge for every dollar spent on mealy bug
huge for every dollar spent on mealy bug control one hundred fifty dollars were
control one hundred fifty dollars were
control one hundred fifty dollars were returned to the cassava farmers this is
returned to the cassava farmers this is
returned to the cassava farmers this is one of the best demonstrations of how
one of the best demonstrations of how
one of the best demonstrations of how effective natural combatants can be and
effective natural combatants can be and
effective natural combatants can be and wasps are now being used in Southeast
wasps are now being used in Southeast
wasps are now being used in Southeast Asia to control their mealy bug problem
Asia to control their mealy bug problem
Asia to control their mealy bug problem a solution derived directly from Mother
a solution derived directly from Mother
a solution derived directly from Mother Nature and good news for farmers in the
Nature and good news for farmers in the
Nature and good news for farmers in the environmental life
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