Invasive apple snail in Kenyan irrigation scheme could potentially spread to more areas
Experts consider the invasive apple snail (Pomacea canaliculata) one of the world’s worst invasive alien species. This species is native to South America and invades freshwater systems. It spreads rapidly and is very adaptable to stressful environmental conditions and changes. It also has high reproductive rates and strong defence mechanisms. Additionally, the areas it invades…
Most read blogs of 2024
As 2024 comes to a close, we’ve tallied the numbers to reveal the most read blogs on the PlantwisePlus Blog this year—plus a few firm favourites! Our most read blogs cover crop pest guides, digital tools, and biocontrols for invasive species, highlighting the impactful work we do with smallholder farmers, policymakers, and communities. Did any…
Understanding mango mealybug – a significant crop pest
The mango mealybug (Rastrococus invadens) is an invasive pest outside its native home in Southeast Asia. It threatens mango crops, particularly affecting smallholder farmers. This scale insect pest lowers mango yields and quality, and because it’s a quarantine pest, it can also impact trade.
Celebrating success: Zambian smallholders combat cassava brown streak disease
Cassava is a critical crop to Zambia’s economy and food security. According to a 2019 paper, cassava (Manihot esculenta) is one of the most important root staple crops in Zambia. An estimated 30% of Zambians – over four million people – consume cassava as part of their daily diet. Indeed, this crop is so important…
Writeshop to draft National Pesticide Residue Monitoring Framework for Kenya
A writeshop has led to the creation of a draft National Pesticide Residue Monitoring Framework for Kenya aimed at coordinating pesticides residue monitoring for domestic and export value chains. This writeshop follows a series of virtual meetings held in the months of May and July 2024 that aimed at examining the situation on pesticide monitoring…
What are Natural Enemies Field Reservoirs, and how do they help farmers control crop pests?
Classical biological control (CBC) is a widely used type of biological control that is proven to be effective in managing invasive pests. This method involves releasing natural enemies like parasitoids or fungi that can keep pest populations under control. However, additional technology, such as natural enemies field reservoirs – or NEFRs – can improve CBC…
Shaping sustainable management of the South American tomato leafminer in Vietnam
The global damage caused by the South American tomato leafminer (Phthorimaea absoluta) poses a significant threat to tomato production worldwide, including in Vietnam. Since its first official recording in Son La province in 2019, tomato growers have faced potential crop losses of 80–100%. A combination of its spread and ability to develop resistance to pesticides…
India Update: Pest Risk Analysis workshop
A Pest Risk Analysis (PRA) allows National Plant Protection Organisations (NPPOs) to assess risks posed by pests or pathways of quarantine concern and identify options to manage those risks. In early Jun, CABI, in collaboration with the National Institute of Plant Health Management (NIPHM), conducted a five-day regional workshop on PRA using CABI decision-support tools.…
How does parthenium weed impact maize crop production?
Parthenium hysterophorus, or parthenium weed, is highly invasive in many parts of the world. It is native to Central and South America but is now found in Asia and Africa, among others. In Australia, it has caused millions of dollars in crop yield losses. This is because the weed can produce prolific seeds, germinate, and…
Parasitic wasps play pivotal role in Kenya’s papaya mealybug control
Papaya mealybug (Paracoccus marginatus) is a devastating papaya pest. It impacts many countries in East and West Africa. Infestations can result in significant economic losses, posing a threat to the livelihoods of smallholder farmers. On average, the pest can cause anywhere from 53% to 100% crop losses, costing £2,224 per hectare annually. Its impact on…