Assessing potential plants extracts to reduce Leucoptera coffeella (lepidoptera: Lyonetiidae) attack in coffee

Abstract

Leucoptera coffeella (Guérin-Méneville) (Lepidoptera: Lyonetiidae) is one of the major pests of coffee in South America, causing severe defoliation in coffee plants. Chemical control has been widely used for the management of this insect. However, this practice is becoming gradually less efficient due to the selection of coffee leaf miner populations resistant to synthetic insecticides. Plants extracts can be a valuable tool for the management of L. coffeella, due to the potential of plants insecticidal properties of them being compatible with the integrated pest management. This study evaluated the effect of nine botanic aqueous extracts on the oviposition and biology of L. coffeella, under laboratory conditions. The extracts of Toona ciliata, Trichilia casaretti and Trichilia pallida decreased the oviposition rate of L. coffeella on coffee leaves. Along with Trichilia catigua, Chenopodium ambrosioides and Melia azedarach, these extracts were classified as deterrent to oviposition by a preference index and the C. ambrosioides, T. casaretti and T. ciliata extracts caused high egg mortality of L. coffeella. Extracts of seeds of A. indica and T. pallida negatively affected the development and survival of L. coffeella, and reduced the mined area by larvae. In conclusion, the extracts of A. indica (S), T. pallida, C. ambrosioides, T. casaretti and T. ciliata exhibited high insecticidal activity and might be useful in integrated management programs for L. coffeella.

A Comprehensive Review of the Coffee Leaf Miner Leucoptera Coffeella (Lepidoptera: Lyonetiidae), With Special Regard to Neotropical Impacts, Pest Management and Control

“…Moreover, pupae treated with A. indica extract showed the highest level of mortality (100%) followed by T. pallida 75% and C. Ambrosioides 62%. In relation to larvae mortality, A. indica and T. pallida extracts were the most effective killing 70% against 50% observed for C. ambrosioides [99]. These results might be useful in integrated management programs for coffee leaf miner insect (L. coffeella).…”

A Comprehensive Review of the Coffee Leaf Miner Leucoptera coffeella (Lepidoptera: Lyonetiidae)—A Major Pest for the Coffee Crop in Brazil and Others Neotropical Countries

“…Moreover, pupae treated with A. indica extract showed the highest level of mortality (100%) followed by T. pallida 75% and C. Ambrosioides 62%. In relation to larvae mortality, A. indica and T. pallida extracts were the most effective, killing 70% against 50% observed for C. ambrosioides [126]. These results might be useful in IPM for coffee leaf miner insects (L. coffeella).…”

Emulsions containing essential oils, their components or volatile semiochemicals as promising tools for insect pest and pathogen management

“…The current interest on the use SEs in pest management are related to their high specificity against insects and their shorter persistence in the environment [25]. On the other hand, the interest for the use of EOs and EOCs is based on these molecules are associated with their role as larvicidal, adulticidal, antifeeding compounds [26][27][28], their capacity to delay the adult emergence and cause egg mortality [29,30], their deterrent effects [31,32], and their arrestant and repellent action [33]. However, the promising properties of EOs, EOCs and SEs cannot hide the many drawbacks associated with their use, including their volatility, limited solubility in water and their thermal and chemical lability (most of these molecules are prompt to oxidation upon exposure to the environment), which make the manipulation and handling of these compounds difficult, and are important drawbacks towards the commercialization of formulations containing this type of molecules [32,[34][35][36][37].…”